I got my night vision scope already and extended mags are a must. What do you guys think about slug rounds though?
Both. It's worse at close range, and not good enough at long range to be worth using over other weapons. In particular, you can't just fire it full auto with the piston, the recoil throws it all over the place. You just have to tap individual shots out, and that makes the piston entirely pointless.
the detriment is they suck imo. Just use the shotty indoors and coax people into following you around corners to blow their faces off