diff --git a/source/games/duke/src/zz_premap.cpp b/source/games/duke/src/zz_premap.cpp
index c209df281..dacc62aea 100644
--- a/source/games/duke/src/zz_premap.cpp
+++ b/source/games/duke/src/zz_premap.cpp
@@ -233,584 +233,6 @@ void G_InitRRRASkies(void)
 void prelevel_d(int g);
 void prelevel_r(int g);
 
-#if 0
-static void prelevel(char g)
-{
-    uint8_t *tagbitmap = (uint8_t *)Xcalloc(65536>>3, 1);
-    int32_t p1 = 0, p2 = 0, p3 = 0;
-    //DukePlayer_t *ps = g_player[screenpeek].ps;
-
-    if (RRRA)
-    {
-        setmapfog(0);
-        fogactive = 0;
-        ufospawnsminion = 0;
-        pistonsound = 0;
-        enemysizecheat = 0;
-        g_player[myconnectindex].ps->MamaEnd = 0;
-        mamaspawn_count = 15;
-        banjosound = 0;
-        RRRA_ExitedLevel = 0;
-        if (!DEER)
-        {
-            for (bssize_t TRAVERSE_CONNECT(playerNum))
-            {
-                DukePlayer_t *ps = g_player[playerNum].ps;
-                ps->sea_sick_stat = 0;
-                ps->SlotWin = 0;
-                if (ud.level_number == 4 && ud.volume_number == 1)
-                    ps->inv_amount[GET_STEROIDS] = 0;
-            }
-            if (ud.level_number == 3 && ud.volume_number == 0)
-                mamaspawn_count = 5;
-            else if (ud.level_number == 2 && ud.volume_number == 1)
-                mamaspawn_count = 10;
-            else if (ud.level_number == 6 && ud.volume_number == 1)
-                mamaspawn_count = 15;
-        }
-    }
-
-    Bmemset(g_spriteExtra, 0, sizeof(g_spriteExtra));
-    Bmemset(g_sectorExtra, 0, sizeof(g_sectorExtra));
-    Bmemset(shadedsector, 0, sizeof(shadedsector));
-    Bmemset(geosectorwarp, -1, sizeof(geosectorwarp));
-    Bmemset(geosectorwarp2, -1, sizeof(geosectorwarp2));
-    Bmemset(ambienthitag, -1, sizeof(ambienthitag));
-    Bmemset(ambientlotag, -1, sizeof(ambientlotag));
-    show2dsector.Zero();
-    resetprestat(0,g);
-    if (RR)
-    {
-        lava_cleararrays();
-        geocnt = 0;
-        ambientfx = 0;
-        thunderon = 0;
-        chickenplant = 0;
-        if (RRRA)
-        {
-            WindTime = 0;
-            WindDir = 0;
-            fakebubba_spawn = 0;
-            RRRA_ExitedLevel = 0;
-            mamaspawn_count = 15; // ???
-            g_bellTime = 0;
-            BellSprite = 0;
-
-            for (bssize_t spriteNum = 0; spriteNum < MAXSPRITES; spriteNum++)
-            {
-                if (sprite[spriteNum].pal == 100)
-                {
-                    if (g_netServer || numplayers > 1)
-                        A_DeleteSprite(spriteNum);
-                    else
-                        sprite[spriteNum].pal = 0;
-                }
-                else if (sprite[spriteNum].pal == 101)
-                {
-                    sprite[spriteNum].extra = 0;
-                    sprite[spriteNum].hitag = 1;
-                    sprite[spriteNum].pal = 0;
-                    changespritestat(spriteNum, 118);
-                }
-            }
-        }
-    }
-    numclouds = 0;
-
-    int missedCloudSectors = 0;
-
-    if (!DEER)
-    for (bssize_t i=0; i<numsectors; i++)
-    {
-        if (RR && sector[i].ceilingpicnum == TILE_RRTILE2577)
-            thunderon = 1;
-        sector[i].extra = 256;
-
-        switch (sector[i].lotag)
-        {
-        case 41:
-        {
-            if (!RR) break;
-            int k = headspritesect[i];
-            while (k != -1)
-            {
-                int const nexti = nextspritesect[k];
-                if (sprite[k].picnum == TILE_RRTILE11)
-                {
-                    p1 = sprite[k].lotag << 4;
-                    p2 = sprite[k].hitag;
-                    A_DeleteSprite(k);
-                }
-                if (sprite[k].picnum == TILE_RRTILE38)
-                {
-                    p3 = sprite[k].lotag;
-                    A_DeleteSprite(k);
-                }
-                k = nexti;
-            }
-            for (bssize_t j = 0; j<numsectors; j++)
-            {
-                if (sector[i].hitag == sector[j].hitag && i != j)
-                {
-                    addjaildoor(p1, p2, sector[i].hitag, sector[j].lotag, p3, j);
-                 }
-            }
-            break;
-        }
-        case 42:
-        {
-            if (!RR) break;
-            int childsectnum = -1;
-            int k = headspritesect[i];
-            while (k != -1)
-            {
-                int const nexti = nextspritesect[k];
-                if (sprite[k].picnum == TILE_RRTILE64)
-                {
-                    p1 = sprite[k].lotag << 4;
-                    p2 = sprite[k].hitag;
-                    for (bssize_t kk = 0; kk < MAXSPRITES; kk++)
-                    {
-                        if (sprite[kk].picnum == TILE_RRTILE66)
-                            if (sprite[kk].lotag == sprite[k].sectnum)
-                            {
-                                childsectnum = sprite[kk].sectnum;
-                                A_DeleteSprite(kk);
-                            }
-                    }
-                    A_DeleteSprite(k);
-                }
-                if (sprite[k].picnum == TILE_RRTILE65)
-                {
-                    p3 = sprite[k].lotag;
-                    A_DeleteSprite(k);
-                }
-                k = nexti;
-            }
-            addminecart(p1, p2, i, sector[i].hitag, p3, childsectnum);
-            break;
-        }
-        case ST_20_CEILING_DOOR:
-        case ST_22_SPLITTING_DOOR:
-            if (sector[i].floorz > sector[i].ceilingz)
-                sector[i].lotag |= 32768u;
-            continue;
-        }
-
-        if (sector[i].ceilingstat&1)
-        {
-            if (!RR && sector[i].ceilingpicnum == TILE_CLOUDYSKIES)
-            {
-                if (numclouds < ARRAY_SSIZE(clouds))
-                    clouds[numclouds++] = i;
-                else
-                    missedCloudSectors++;
-            }
-
-            if (g_player[0].ps->one_parallax_sectnum == -1)
-                g_player[0].ps->one_parallax_sectnum = i;
-        }
-
-        if (sector[i].lotag == 32767) //Found a secret room
-        {
-            g_player[0].ps->max_secret_rooms++;
-            continue;
-        }
-
-        if ((uint16_t)sector[i].lotag == UINT16_MAX)
-        {
-            g_player[0].ps->exitx = wall[sector[i].wallptr].x;
-            g_player[0].ps->exity = wall[sector[i].wallptr].y;
-            continue;
-        }
-    }
-
-    if (missedCloudSectors > 0)
-        Printf(TEXTCOLOR_RED "Map warning: have %d unhandled TILE_CLOUDYSKIES ceilings.\n", missedCloudSectors);
-
-    // NOTE: must be safe loop because callbacks could delete sprites.
-    if (!DEER)
-    for (bssize_t nextSprite, SPRITES_OF_STAT_SAFE(STAT_DEFAULT, i, nextSprite))
-    {
-        //A_LoadActor(i);
-        if (G_CheckExitSprite(i))
-        {
-            g_player[0].ps->exitx = SX(i);
-            g_player[0].ps->exity = SY(i);
-        }
-        else switch (DYNAMICTILEMAP(PN(i)))
-            {
-            case NUKEBUTTON__STATIC:
-                if (RR) chickenplant = 1;
-                break;
-            case GPSPEED__STATIC:
-                // DELETE_AFTER_LOADACTOR. Must not change statnum.
-                sector[SECT(i)].extra = SLT(i);
-                A_DeleteSprite(i);
-                break;
-
-            case CYCLER__STATIC:
-                // DELETE_AFTER_LOADACTOR. Must not change statnum.
-                if (g_cyclerCnt >= MAXCYCLERS)
-                {
-                    Bsprintf(tempbuf,"\nToo many cycling sectors (%d max).",MAXCYCLERS);
-                    G_GameExit(tempbuf);
-                }
-                g_cyclers[g_cyclerCnt][0] = SECT(i);
-                g_cyclers[g_cyclerCnt][1] = SLT(i);
-                g_cyclers[g_cyclerCnt][2] = SS(i);
-                g_cyclers[g_cyclerCnt][3] = sector[SECT(i)].floorshade;
-                g_cyclers[g_cyclerCnt][4] = SHT(i);
-                g_cyclers[g_cyclerCnt][5] = (SA(i) == 1536);
-                g_cyclerCnt++;
-                A_DeleteSprite(i);
-                break;
-
-            case RRTILE18__STATICRR:
-                if (!RR) break;
-                addtorch(i);
-                A_DeleteSprite(i);
-                break;
-
-            case RRTILE35__STATICRR:
-                addlightning(i);
-                A_DeleteSprite(i);
-                break;
-
-            case RRTILE68__STATICRR:
-                shadedsector[SECT(i)] = 1;
-                A_DeleteSprite(i);
-                break;
-
-            case RRTILE67__STATICRR:
-                sprite[i].cstat |= 32768;
-                break;
-
-            case SOUNDFX__STATICRR:
-                if (ambientfx >= 64)
-                    G_GameExit("\nToo many ambient effects");
-                else
-                {
-                    ambienthitag[ambientfx] = SHT(i);
-                    ambientlotag[ambientfx] = SLT(i);
-                    sprite[i].ang = ambientfx++;
-                    sprite[i].lotag = 0;
-                    sprite[i].hitag = 0;
-                }
-                break;
-
-            //case SECTOREFFECTOR__STATIC:
-            //case ACTIVATOR__STATIC:
-            //case TOUCHPLATE__STATIC:
-            //case ACTIVATORLOCKED__STATIC:
-            //case MUSICANDSFX__STATIC:
-            //case LOCATORS__STATIC:
-            //case MASTERSWITCH__STATIC:
-            //case RESPAWN__STATIC:
-            //    sprite[i].cstat &= ~(1|16|32|256);
-            //    break;
-            }
-    }
-    if (RR && !DEER)
-    {
-        for (bssize_t i = 0; i < MAXSPRITES; i++)
-        {
-            if (sprite[i].picnum == TILE_RRTILE19)
-            {
-                if (sprite[i].hitag == 0)
-                {
-                    if (geocnt >= MAXGEOSECTORS)
-                        G_GameExit("\nToo many geometry effects");
-                    geosector[geocnt] = sprite[i].sectnum;
-                    for (bssize_t j = 0; j < MAXSPRITES; j++)
-                    {
-                        if (sprite[i].lotag == sprite[j].lotag && i != j && sprite[j].picnum == TILE_RRTILE19)
-                        {
-                            if (sprite[j].hitag == 1)
-                            {
-                                geosectorwarp[geocnt] = sprite[j].sectnum;
-                                geox[geocnt] = sprite[i].x - sprite[j].x;
-                                geoy[geocnt] = sprite[i].y - sprite[j].y;
-                            }
-                            if (sprite[j].hitag == 2)
-                            {
-                                geosectorwarp2[geocnt] = sprite[j].sectnum;
-                                geox2[geocnt] = sprite[i].x - sprite[j].x;
-                                geoy2[geocnt] = sprite[i].y - sprite[j].y;
-                            }
-                        }
-                    }
-                    geocnt++;
-                }
-            }
-        }
-    }
-
-    for (size_t i = 0; i < MAXSPRITES; i++)
-    {
-        if (sprite[i].statnum < MAXSTATUS && (DEER || PN(i) != TILE_SECTOREFFECTOR || SLT(i) != SE_14_SUBWAY_CAR))
-            fi.spawn(-1, i);
-    }
-
-    if (!DEER)
-    for (size_t i = 0; i < MAXSPRITES; i++)
-    {
-        if (sprite[i].statnum < MAXSTATUS && PN(i) == TILE_SECTOREFFECTOR && SLT(i) == SE_14_SUBWAY_CAR)
-            fi.spawn(-1, i);
-        if (RR && sprite[i].picnum == TILE_RRTILE19)
-            A_DeleteSprite(i);
-        if (RR && sprite[i].picnum == TILE_RRTILE34)
-        {
-            g_sectorExtra[sprite[i].sectnum] = sprite[i].lotag;
-            A_DeleteSprite(i);
-        }
-    }
-
-    //G_SetupRotfixedSprites();
-
-    if (!DEER)
-    for (bssize_t i=headspritestat[STAT_DEFAULT]; i>=0; i=nextspritestat[i])
-    {
-        if (PN(i) <= 0)  // oob safety for switch below
-            continue;
-
-        for (bsize_t ii=0; ii<2; ii++)
-        {
-            switch (DYNAMICTILEMAP(PN(i)-1+ii))
-            {
-            case DIPSWITCH__STATIC:
-            case DIPSWITCH2__STATIC:
-            case PULLSWITCH__STATIC:
-            case HANDSWITCH__STATIC:
-            case SLOTDOOR__STATIC:
-            case LIGHTSWITCH__STATIC:
-            case SPACELIGHTSWITCH__STATIC:
-            case SPACEDOORSWITCH__STATIC:
-            case FRANKENSTINESWITCH__STATIC:
-            case LIGHTSWITCH2__STATIC:
-            case POWERSWITCH1__STATIC:
-            case LOCKSWITCH1__STATIC:
-            case POWERSWITCH2__STATIC:
-            case RRTILE8464__STATICRR:
-                if (RR && !RRRA && PN(i)-1+ii == (uint32_t)TILE_RRTILE8464) break;
-                // the lower code only for the 'on' state (*)
-                if (ii==0)
-                {
-                    uint16_t const tag = sprite[i].lotag;
-                    tagbitmap[tag>>3] |= 1<<(tag&7);
-                }
-
-                break;
-            }
-        }
-    }
-
-    // initially 'on' SE 12 light (*)
-    if (!DEER)
-    for (bssize_t j=headspritestat[STAT_EFFECTOR]; j>=0; j=nextspritestat[j])
-    {
-        uint16_t const tag = sprite[j].hitag;
-
-        if (sprite[j].lotag == SE_12_LIGHT_SWITCH && tagbitmap[tag>>3]&(1<<(tag&7)))
-            actor[j].t_data[0] = 1;
-    }
-
-    Xfree(tagbitmap);
-
-    mirrorcnt = 0;
-
-    for (bssize_t i = 0; i < numwalls; i++)
-    {
-        walltype * const pWall = &wall[i];
-
-        if (!DEER && pWall->overpicnum == TILE_MIRROR && (pWall->cstat&32) != 0)
-        {
-            int const nextSectnum = pWall->nextsector;
-
-            if ((nextSectnum >= 0) && sector[nextSectnum].ceilingpicnum != TILE_MIRROR)
-            {
-                if (mirrorcnt > 63)
-                {
-                    G_GameExit("\nToo many mirrors (64 max.)");
-                }
-
-                sector[nextSectnum].ceilingpicnum = TILE_MIRROR;
-                sector[nextSectnum].floorpicnum   = TILE_MIRROR;
-                mirrorwall[mirrorcnt]       = i;
-                mirrorsector[mirrorcnt]     = nextSectnum;
-                mirrorcnt++;
-                continue;
-            }
-        }
-
-        if (g_animWallCnt >= MAXANIMWALLS)
-        {
-            Bsprintf(tempbuf,"\nToo many 'anim' walls (%d max).",MAXANIMWALLS);
-            G_GameExit(tempbuf);
-        }
-
-        animwall[g_animWallCnt].tag = 0;
-        animwall[g_animWallCnt].wallnum = 0;
-
-        int const switchPic = G_GetForcefieldPicnum(i);
-
-        if (switchPic >= 0)
-        {
-            switch (DYNAMICTILEMAP(switchPic))
-            {
-                case FANSHADOW__STATIC:
-                    if (RR) break;
-                    fallthrough__;
-                case FANSPRITE__STATIC:
-                    wall->cstat |= 65;
-                    animwall[g_animWallCnt].wallnum = i;
-                    g_animWallCnt++;
-                    break;
-
-                case W_FORCEFIELD__STATIC:
-                    if (RR) break;
-                    if (pWall->overpicnum == W_FORCEFIELD__STATIC)
-                        for (bsize_t j = 0; j < 3; j++) markTileForPrecache(TILE_W_FORCEFIELD + j, 0);
-                    if (pWall->shade > 31)
-                        pWall->cstat = 0;
-                    else
-                        pWall->cstat |= FORCEFIELD_CSTAT | 256;
-
-
-                    if (pWall->lotag && pWall->nextwall >= 0)
-                        wall[pWall->nextwall].lotag = pWall->lotag;
-                    fallthrough__;
-                case BIGFORCE__STATIC:
-                    animwall[g_animWallCnt].wallnum = i;
-                    g_animWallCnt++;
-
-                    continue;
-            }
-        }
-
-        pWall->extra = -1;
-
-        switch (DYNAMICTILEMAP(pWall->picnum))
-        {
-            case WATERTILE2__STATIC:
-                for (bsize_t j = 0; j < 3; j++)
-                    markTileForPrecache(pWall->picnum + j, 0);
-                break;
-
-            case RRTILE1814__STATICRR:
-            case RRTILE1817__STATICRR:
-                markTileForPrecache(pWall->picnum, 0);
-                break;
-            case RRTILE1939__STATICRR:
-            case RRTILE1986__STATICRR:
-            case RRTILE1987__STATICRR:
-            case RRTILE1988__STATICRR:
-            case RRTILE2004__STATICRR:
-            case RRTILE2005__STATICRR:
-            case RRTILE2123__STATICRR:
-            case RRTILE2124__STATICRR:
-            case RRTILE2125__STATICRR:
-            case RRTILE2126__STATICRR:
-            case RRTILE2636__STATICRR:
-            case RRTILE2637__STATICRR:
-            case RRTILE2878__STATICRR:
-            case RRTILE2879__STATICRR:
-            case RRTILE2898__STATICRR:
-            case RRTILE2899__STATICRR:
-                markTileForPrecache(pWall->picnum, 0);
-                break;
-
-
-            case TECHLIGHT2__STATIC:
-            case TECHLIGHT4__STATIC: markTileForPrecache(pWall->picnum, 0); break;
-            case W_TECHWALL1__STATIC:
-            case W_TECHWALL2__STATIC:
-            case W_TECHWALL3__STATIC:
-            case W_TECHWALL4__STATIC:
-                if (RR) break;
-                animwall[g_animWallCnt].wallnum = i;
-                //                animwall[g_numAnimWalls].tag = -1;
-                g_animWallCnt++;
-                break;
-            case SCREENBREAK6__STATIC:
-            case SCREENBREAK7__STATIC:
-            case SCREENBREAK8__STATIC:
-                for (bssize_t j = TILE_SCREENBREAK6; j < TILE_SCREENBREAK9; j++)
-                    markTileForPrecache(j, 0);
-
-                animwall[g_animWallCnt].wallnum = i;
-                animwall[g_animWallCnt].tag     = -1;
-                g_animWallCnt++;
-                break;
-
-            case FEMPIC1__STATIC:
-            case FEMPIC2__STATIC:
-            case FEMPIC3__STATIC:
-                if (RR) break;
-                pWall->extra                 = pWall->picnum;
-                animwall[g_animWallCnt].tag = -1;
-
-                if (adult_lockout)
-                    pWall->picnum = (pWall->picnum == TILE_FEMPIC1) ? TILE_BLANKSCREEN : TILE_SCREENBREAK6;
-
-                animwall[g_animWallCnt].wallnum = i;
-                animwall[g_animWallCnt].tag     = pWall->picnum;
-                g_animWallCnt++;
-                break;
-
-            case SCREENBREAK1__STATIC:
-            case SCREENBREAK2__STATIC:
-            case SCREENBREAK3__STATIC:
-            case SCREENBREAK4__STATIC:
-            case SCREENBREAK5__STATIC:
-            //
-            case SCREENBREAK9__STATIC:
-            case SCREENBREAK10__STATIC:
-            case SCREENBREAK11__STATIC:
-            case SCREENBREAK12__STATIC:
-            case SCREENBREAK13__STATIC:
-            case SCREENBREAK14__STATIC:
-            case SCREENBREAK15__STATIC:
-            case SCREENBREAK16__STATIC:
-            case SCREENBREAK17__STATIC:
-            case SCREENBREAK18__STATIC:
-            case SCREENBREAK19__STATIC:
-                if (RR) break;
-                animwall[g_animWallCnt].wallnum = i;
-                animwall[g_animWallCnt].tag     = pWall->picnum;
-                g_animWallCnt++;
-                break;
-        }
-    }
-
-    //Invalidate textures in sector behind mirror
-    for (bssize_t i=0; i<mirrorcnt; i++)
-    {
-        int const startWall = sector[mirrorsector[i]].wallptr;
-        int const endWall   = startWall + sector[mirrorsector[i]].wallnum;
-
-        for (bssize_t j = startWall; j < endWall; j++)
-        {
-            wall[j].picnum     = TILE_MIRROR;
-            wall[j].overpicnum = TILE_MIRROR;
-        }
-    }
-
-    if (RR && !thunderon)
-    {
-        videoSetPalette(BASEPAL,0);
-        g_visibility = g_player[screenpeek].ps->visibility;
-    }
-    if (RR)
-    {
-		tileDelete(0);
-    }
-
-    G_SetupGlobalPsky();
-
-}
-#endif
-
 void G_NewGame(int volumeNum, int levelNum, int skillNum)
 {
     DukePlayer_t *const pPlayer = g_player[0].ps;