I guess that's better than nothing.
Still wished the game was more of a squad-based game with somewhat distinct classes...
Rifleman, Smartgunner, Comm-Tech and Medic. The Rifleman being able to carry a second firearm aside from the pulse rifle and the pistol. The Smartgunner is "stuck" with the Smartgun and all that it has to offer (also carries a pistol), whereas the Comm-Tech and the Medic pack pulse rifles and pistols, and instead of a second firearm they carry one Motion Detector each. The Comm-Tech is also equipped with a hacking device and assembles and primes Sentry Guns faster than other classes. The Medic's special equipment is a medikit and a fire extinguisher (which can be used both to extinguish fires a well as somewhat neutralizing acid on the ground/floor). Medics and Comm-Techs may exchange their pulse rifle for a shotgun, flame unit etc. (but no heavy weapons), but they may not carry both. All marines are equipped with flares, flashlights, IR vision, blowtorches and hand grenades. Then you have ranking... privates and corporals etc.
Aw well, it's never gonna happen.