[Death2All]

Maneuverability, for their vehicles. The Scythe and Magrider are inherently more maneuverable than NC and TRs air and tank counterparts, thus giving them an edge in battle.

As for weapons, I believe none of their weapons suffer from bullet drop, making them easier to aim. They instead are more penalized by damage degradation (AKA bullets doing less damage over range). Their damage and accuracy and clip size seems to be an in between from TR and NC. They're just sort of balanced in that regard.

In PS1 they had the ability to easily switch between Standard fire ammo (good for infantry) and armor piercing ammo (good for light vehicles, MAXes etc.) on the fly. While it wasn't that huge of an advantage, I think it would be a welcome return. Assuming the Standard and AP ammo is even still in the game.