diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index 5df4d3a66..866d006a1 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -1952,6 +1952,7 @@ void moveweapons_d(void)
 		case FIREBALL:
 			// Twentieth Anniversary World Tour
 			if (act->s->picnum == FIREBALL && !isWorldTour()) break;
+			[[fallthrough]];
 		case SHRINKSPARK:
 		case RPG:
 		case FIRELASER:
diff --git a/source/games/duke/src/animatesprites_d.cpp b/source/games/duke/src/animatesprites_d.cpp
index 2c06fbf18..8e0cb39c6 100644
--- a/source/games/duke/src/animatesprites_d.cpp
+++ b/source/games/duke/src/animatesprites_d.cpp
@@ -363,8 +363,8 @@ void animatesprites_d(spritetype* tsprite, int& spritesortcnt, int x, int y, int
 				case FREEZE_WEAPON:      newtspr->picnum = FREEZESPRITE;         break;
 				case FLAMETHROWER_WEAPON: //Twentieth Anniversary World Tour
 					if (isWorldTour())
-						newtspr->picnum = FLAMETHROWERSPRITE;   break;
-					[[fallthrough]];
+						newtspr->picnum = FLAMETHROWERSPRITE;   
+					break;
 				case DEVISTATOR_WEAPON:  newtspr->picnum = DEVISTATORSPRITE;     break;
 				}
 
diff --git a/source/games/duke/src/prediction.cpp b/source/games/duke/src/prediction.cpp
index 193597953..599c4e4ce 100644
--- a/source/games/duke/src/prediction.cpp
+++ b/source/games/duke/src/prediction.cpp
@@ -54,7 +54,7 @@ void resetmys()
 	myy = omyy = ps[myconnectindex].pos.y;
 	myz = omyz = ps[myconnectindex].pos.z;
 	myxvel = myyvel = myzvel = 0;
-	myang = myang = ps[myconnectindex].angle.ang;
+	myang = ps[myconnectindex].angle.ang;
 	myhoriz = omyhoriz = ps[myconnectindex].horizon.horiz;
 	myhorizoff = omyhorizoff = ps[myconnectindex].horizon.horizoff;
 	mycursectnum = ps[myconnectindex].cursectnum;
diff --git a/source/games/duke/src/spawn_d.cpp b/source/games/duke/src/spawn_d.cpp
index 65ec7d604..02e76b5a4 100644
--- a/source/games/duke/src/spawn_d.cpp
+++ b/source/games/duke/src/spawn_d.cpp
@@ -606,7 +606,7 @@ int spawn_d(int j, int pn)
 				// Twentieth Anniversary World Tour
 				if (!isWorldTour())
 					break;
-
+				[[fallthrough]];
 			case EXPLOSION2:
 			case EXPLOSION2BOT:
 			case BURNING:
@@ -973,6 +973,7 @@ int spawn_d(int j, int pn)
 			case FLAMETHROWERAMMO: // Twentieth Anniversary World Tour
 				if (!isWorldTour())
 					break;
+				[[fallthrough]];
 
 			case ATOMICHEALTH:
 			case STEROIDS: