Twin Builder

 is a Tier 4 Tank that upgrades from Builder, Twin Trapper and Heavy Twin at level 45.

Design
The looks similar to the Heavy Twin, but both of its guns are shortened slightly and gain Builder's outward tapering tip. With the tip added on, the guns are about the same length as a Heavy Twin's. Compared to Twin Trapper, its barrels are wider, so wide in fact that they expand across the tank and gain a supporting barrel behind them to hold them up.