Ereo(Kalakarg):
Field Doctor: Toxin Stream, Slug Pistol, Otlok Beam. Light Armor. Think medic from tf2. It has a stream of constantly healing magic and also some powerful weapons, but the downside is that it would be healing most of the time.
Iso(Iconian):
Rocketeer: Beam Cannon, Slug Pistol, Slag Grenades. Heavy Armor. Effective against larger enemies and vehicles.
DX-716(Lacamptu):
Bionic: Kinetic Rifle, Overload, Charge. Medium Armor. Buff class. Overload hinders enemies, and charge supercharges everyone's weapons.
You(Human)
Primary:
Flamethrower(What an unethical way to kill!)
Secondary:
SMG(ditto)
Equipment:
Frag grenades(x3)(Explode with a boom)