Are all fired rockets (or other projectiles) eventually destroyed, including those which might fly into the sky and miss all collision contacts?
The missile action runs a while loop that is true only if it has more than zero health AND is less than 5000 units from the player. Once that condition is broken, the missile is removed via ent_remove(me).
Also, the level the models are in are surrounded by walls and right now the missiles only go straight, so they hit the walls before they exceed that range anyways.
The tracks laid by the tank remove themselves after their alpha hits 0. Same goes for the smoke.
