I use Light since it provides me speed and since it gets me where I need to go fast. Some of you probably think I use the Carb-9 since it has a lot of damage but I rather go with the Galactic equipped with a High-cap mag, Red dot sight, Six-Vent muzzle break and a grip along with a Sea Eagle pistol. Good accuracy. Or if I'm in the mood to go crazy I use the Tampa with a Drum mag.
I also prefer the Medic class since it lets you be a really good team player, Self Revive & Lazarus Grenade are very useful. Engineer? Not a fan, hate it. Especially when the enemies are always putting mines and turrets everywhere... (sigh)
So that's my overall. What's yours?