you seem to have every range covered tbh, altho not perfectly
if you just want raw performance i’d consider a 3slot pmg (jt reskin is the cbmp bolt iirc) for cqc and a 3slot obeya cr762 for all other ranges
if you want a gun that’s fun to play i’d recommend the joker carbine (jt reskin is the stac 10 iirc) or the oscar, both are highly mobile semi-automatics meant to be hipfired
if you want anti vehicle guns, i’d recommend the dmr-av or the issr-b
if you want something from the lmg category (since you don’t have any), i’d recommend the nssw for assault rifle-ish gameplay or the amg stheno for a more classic “turret” type of gameplay