red mechgun and yasminkov 9000M

[K_I_R_E_E_K]

That's a hard one, since red mechgun is more common, it's easier to find to good hit % and on top of that it has a higher grinder.

Yas is good for certain situations, it has like 2x the range of a normal mechgun, great to deal with lilies or even at last form of falz.

I can't give a defenitive opinion, but i would choose yas because of the range, to kill enemys charge vulcans are more then enough.