I don't ever play as assault until I keep getting killed by that FREAKING grenade launcher. I then seek out who was doing it too me and attempt to grenade launch them. Not always, but for the most part, the only time I use that stupid, awful (should be taken out of the game) weapon is when I have been killed by it OVER AND OVER AND OVER...etc.
One time in Karkand, I didn't realize I was low on bullets in my clip...about 7 left. I ran around the corner and boom, my screen is blurry, some moron shot a grenade at me. I crouch down and fire at him...run out of bullets...start to reload...a lot of time goes by. Instead of just switching to the stupid machine gun and blowing me away, he bunny hops around side to side and reloads the grenade launcher, only to then shoot it strait into my feet, which blows both of us up. I CANNOT STAND THAT WEAPON!!!!!!!!!!!!
I don't get mad about a lot of things, but I do "hit" my desk when I get blown up time after time by the grenade launcher.
EA needs to update it in the "next" patch, which makes it not near as accurate and maybe takes a full healthy person down to 2 bars of health, much like the M24 or M95.