It's hard to say exactly which FPS gets the credit for having class-based, team-focused multiplayer first, but it isn't hard to say who did it best in the early days: Tribes 2. Not only did it have that sweet mix of vehicle and infantry waging large scale battles over positively massive maps, it had the most insane velocity and range of movement of any FPS ever made thanks to the use of jetpacks. We're not talking about sissy, pansy Halo: Reach jetpacks either. We're talking about leaping-tall-buildings-in-a-single-bound, give Boba Fett an inferiority complex jetpacks. A match of CTF in Tribes 2 makes a match of CTF in Unreal Tournament look like a round of Olympic curling.