Best weapon for killing mutants?

Hi guys i need to know want is the best weapon for M.M mode...

NOTE: I ONLY NEED U TO SAY THESE:
Gatling Gun?
RPK-Gold?
Thompson?
Thanks...

gatling gun- Good AMMO capacity, okay firing rate, Slow Reload, Heavy
RPK GOLD- Decent gun nuff said
Thompson- DONT USE IT

RPK - GOLD. I killed about over 10 mutant in 1 game before from using that wepaon.

galting is very heavy and you cant run............so..........
rpk and thomson is light you can run and hit ............i think......

I preffer galting gun ..

u can get gatling and tommy from the mutant mode supplies also in game... RPK gold is rare and very powerful gun use it.....

i'd suggest the rpk gold as a must for MM.. i rkon you should get m60 adv if you can tho, and i'd go tommy next and then gatling gun

If they had this it would be the best weapon overall:

Winchester Scope with Red Dot Sight
Full auto
Cartridge reload
30/90 ammo
And these stats:

Close range: 60 DMG
Mid Range: 50 DMG
Long Range: 45 DMG

1 shot headshot

BUY NORMAL RPK DONT SPEND MONEY AT CRATES YOU WIN NOTHING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!