Okay, here is the ranking system first, then the class System.
RIO (Second In Command)
Here are the classes, if it is VmV+ Only VmV and higher ranks can only use the class.
Ranger: (REC+) (Weapons: SMG, Pistol)
Bear: (SP2+) (Weapons: Shotgun, Pistol)
Medic: (REC+) (Weapons: Pistol)
Hunter: (VmV+) (Weapons: CrossBow, Magnum)
Heavy: (XnO+) (Weapons: RPG, Pistol )
Snake: (RIO Only) (Weapons: Magnum, CrossBow, SMG, Pistol)
Danger: (LEG Only) (Weapons: Weapons of choice)
Hope you enjoy this, feel free to post comments about it.