That is a good idea but it should be an optional thing under the difficulty settings. Just like hard difficulty removes crosshairs, the ammo counter should change to an approximation of magazine weight.

Typically in first person shooters that use controllers, you get controller vibration when you fire your weapon, its a form of feedback that's supposed to make you feel like you're really firing a weapon. Most games do have an option to turn off the vibration feature though.

Maybe the vehicles in arma 3 are supposed to be hybrid electric vehicles with large lithium-ion batteries or hydrogen fuel cells and those are what are exploding, probably not.