I think, that the heavy sniper rifles - M320 LRR rifle and GM6 Lynx rifle is the most powerful hand-weapons in the game. I conducted tests with M320 LRR, shooting at close range into the "Hunter".
To destroy the wheel of a Hunter, it took me 5 hits, to destroy the armored glass I took 13 hits! Lynx has more better result. 3 hit for wheel, and 9 hits for armored glass.
As seems to me, these weapons must destroy the wheel or armored glass in one hit, maximum two-hits for armored glass, especially if the bullet is flying at a distance of several meters.
Rifles of 50-Caliber in the game, should be able to easily penetrate through these targets. Such features, will allow to destroy drivers/wheels and interfere the movement of light-armored vehicles.