A tier:
Ameli Heavy and Subverter variant
ARX-160 Hole Puncher and Steelbite variant
AK12 RIP variant
MP11 Goliath
EM1
BAL-27 variant that increases medium range damage
Ripped energy turret

B tier:
KF5
ASM1
IMR
Bal 27
AK12
C tier:
ARX-160
Hbra3
Pytaek
MK14
SAC3
SN6
AMR9
Shit/Joke tier:
EPM3
XMG
All the fucking shotguns
Snipers
All pistols except RW1