NSVehicle: Add the following methods - HidePlayermodel (for the self-driver) and DriverAnimation. The latter is a gentle request and the mod doesn't have to respect it, but should be used as a fallback.

src/client/player.qc

@@ -62,12 +62,18 @@ player::predraw(void)
 		}
 	}
 
+	if (this_us && flags & FL_INVEHICLE) {
+		NSVehicle veh = (NSVehicle)vehicle;
+		if (veh)
+			this_us = veh.HidePlayermodel();
+	}
+
 	if (autocvar_cl_thirdperson == TRUE || !this_us) {
 		Voice_Draw3D(this);
 		Player_PreDraw(this, TRUE);
 		if (p_model)
 			addentity(p_model);
-		addentity(this);
+		//addentity(this);
 	} else {
 		Player_PreDraw(this, FALSE);
 		if (p_model)

src/gs-entbase/shared/NSMonster.qc

@@ -208,7 +208,7 @@ NSMonster::SeeThink(void)
 		traceline(origin, w.origin, MOVE_EVERYTHING, this);
 
 		/* we have line of sight with the player */
-		if (trace_fraction == 1.0f) {
+		if (trace_fraction == 1.0f || trace_ent == w) {
 			if (m_eEnemy != w) {
 				m_eEnemy = w;
 				AlertNearby();

src/gs-entbase/shared/NSVehicle.h

@@ -45,6 +45,7 @@ class NSVehicle:NSSurfacePropEntity
 	virtual void(void) UpdateView;
 	virtual bool(void) HideViewWeapon;
 	virtual bool(void) HideCrosshair;
+	virtual bool(void) HidePlayermodel;
 #else
 	virtual vector(void) GetExitPos;
 	virtual void(void) EvaluateEntity;
@@ -57,6 +58,7 @@ class NSVehicle:NSSurfacePropEntity
 	virtual void(base_player) PlayerEnter;
 	virtual void(base_player) PlayerLeave;
 	virtual void() PlayerInput;
+	virtual float(void) DriverAnimation;
 };
 
 enumflags

src/gs-entbase/shared/NSVehicle.qc

@@ -14,6 +14,12 @@
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+float
+NSVehicle::DriverAnimation(void)
+{
+	return (-1);
+}
+
 entity
 NSVehicle::GetDriver(void)
 {
@@ -31,6 +37,11 @@ NSVehicle::HideCrosshair(void)
 {
 	return true;
 }
+bool
+NSVehicle::HidePlayermodel(void)
+{
+	return true;
+}
 
 void
 NSVehicle::DriverRelink(void)