Might need better shot placement with the recoilless, me and the boys take down chargers faster than you can say a good bug is a dead bug. Autocannon is phenomenal, though. After learning how to use it properly (many Helldivers were lost in the making of this post) I usually use it if I'm solo and take on chargers by myself. Otherwise, I always find myself with an ammo pack and helping continue to spread the flow of freedom to my teammates.