Builder class idea:
The builder class would only have a pistol as their main gun.
The class would have the hammer that allows you to build sandbags (limit of 3 would probably be best) they could get easily blown up by explosives and enough bullets.
This class would have another item the turret that you can place down but take 5 seconds to place and if shot in that time would break. It wouldn't have a guard like the one on the truck.
This class could maybe have the option to have a sword instead of a pistol (would fit with the bow.)
I just want a builder class so it could be totally different from this and I wouldn't care.