find a void lmg. i used the one from new monarchy (shop weapons have a random type each week) and went on my first 19 kill streak with it (higher now). shotguns can work as well. it is very rare (if not impossible) to find a primary outside of the vog with void. and even then only atheon ep has void in primary slot. so again best bet is to have a shotgun and a lmg. fusion rigle if your THAT guy but what ever worka for you.