The reason for when I put 5th setup prop (models/props_gameplay/door_grate002_top.mdl), parented to a func_door, the map compiles just right but when I get to test it, the game crashes? It also crashes on a friend of mine. But if I take the prop out and just leave the func_door brush the game doesn't crash? I really, really appreciate your help. Thanks. EDIT: There are other 4 func_door and 4 props attached to them and they work just fine!