It would be more realistic, and I don't feel it would suck, as long as it happens to your enemies and allies too. And it wouldn't happen that often (though it would depend on the weapon being used).
yea imagine pulling the pin on a grenade and having it blow in ur face. Hey weapons malfuntioned in the first moh games 4 ps.nades would sometimes blow in ur hand and bazookas ammo would blow inside the chamber. It would suck, but i think theyre just gliches.