In the Zalo mod pack there is something called the Ghost clone( he looks just like a normal coalition soldier)...he can walk through walls, doors, ships, and people, enemies don't shoot at him and he can't die except from falling off the map, can't lose limbs or anything, i always use him, well enemies see him but don't shoot. try looking around in the mod releases pages you'll find it eventually >:D also he cna't be crushed it's as though he's infront of everything