It's basically Uncharted's multiplayer but classed based. The justification for it is simple. You take the evil ending and split it up into the conduits on Cole's side, and the condults not on Cole's side. All the classes would have the pea shooter, the grenade, and can climb.
- The Medic would be the electric guy, they can revive people and grind on power lines.
- The Scout would be the Ice guy with ice lunch, and ice shield.
- The Demolition would be the Fire guy with all the fire powers and missiles.