I could offer some help with that. : ) Mind you, these things are all averages.

NC - hard hitting guns with most recoil. Lowest rounds-per-minute (RPM)

TR - Everything is solved by throwing more bullets at it. Biggest magazines and on average the highest RPM. Some weapons can spray a bit because of this.

VS - Lasers. Very accurate, a little more bullet damage than the TR's guns, on some guns almost no recoil.



And then you just have to go with the theming you like best. But all factions have their good and bad points, really.