Yeah it's bomb proof alright. I've dropped a full load of lancs (salvo 14) onto a tiger after it taking 2 DIRECT hits from 2 1K bombs. It still kept driving. I took a Tiger up to kill it then, and got bombed by a 190A8 with a 500kg bomb, 1K bomb basically. I don't get it, do some people just get a bugged tiger? Other times I've hit a tiger with a 500lb bomb and killed it.