UA420 Assault Rifle.
Slower firing than a UA GPR-12 but packs a bigger punch, it also penetrates deeper into armor.
Essentially an upgraded version of the standard UA GPR-12, the UA420 fires marginally slower, but deals more damage. It is also better against larger targets and is not penalized against psionic units like its predecessor. However, it should be noted it does have a slightly lower splash radius.
The UA420 is a popular weapon for damage dealing classes such as the Operations Commandos. The improved performance over the UA GPR-12 without sacrificing reload speed makes it solid replacement weapon. Recently, many high level Operations Commando player will favor a Flamethrower and Pistol, and give the UA420 to other damage dealing classes such as the Rifleman or Assault.