Oh don't worry about that, due to cost, time to build and T1 cost you will always have better field presence.
And no, it will not beat LMG gren. It could if 0 models died, but it will loose models rapidly, loosing dps just as fast.
i dont have time to argue with you, it wont MVGAME (and pros usually put penals in m3 to be more efficient for this reason)