The Gaz-R is one of the suits i wouldn't have given a second look before getting into GBO2 though it's been one of my favourites from a gameplay perspective thanks in part to it's simple yet highly effective kit.
It has the same dependable single shot stunning beam rifle as the Galbaldy Beta alongside a pair of shoulder mounted beam cannons that can be fired in quick succession to build stun quickly, a choice of melee weapon between the more conventual to use Twin Lancer or the longer reaching but harder to combo with Heat Lance while having a beam saber as a sub-weapon to use either to follow up landing an attack with either and with it's good thruster gauge, high turn speed and decent mobility makes it a great close to mid-range suit that can fight well either by itself in a duel or as part of a team effort.