I know.. that's who. Watch the gameplay video again. Please answer for me the following: Please name for me, the 9 levels of power.
www.youtube.com/watch?v=G042hfKwYKg
No, but seriously, answer the following please, and you will answer the question:
1) damage inflicted by the LMG
2) the number of shots you count that hit the car
3) damage inflicted by the grenade (hint, its 4 points)
4) the result of a single frag being thrown at the car
I highly doubt that, at least, bullet based weapons can destroy actual terrain. Look at how the heavy gains access to the berserker.. he switches to the RPG. Why not just use the LMG if it would destroy the wall and then damage whatever is left inside?