A flying bomb controlled by an "AI" would be acceptable..
BUT look, there are indeed people who play this game who have lived through/been in the vicinity of Suicide Attacks, and yes, this is just a game, pixels don't die etc etc, NOT THE POINT.
The point is, that when you live through something like that in real life, the memories don't go away and you damn well don't want them dragged up by a game which you play to get away from the real world.
It's not the point that it's a game, the point is that the simple reminder of an event like that, is not a pleasant one.