Invader

 is a Tier 5 tank that upgrades from Conqueror, Twin Builder, Twin Destroyer, Bulwark and Knocker at Level 60.

Design
The is basically a Twin-Conqueror, with a set of Twin Builder barrels on the front and a set of Twin Destroyer barrels on the back. Both sets of barrels look identical to the tanks they originate from.

Technical
Like the Conqueror, its Twin Builder barrels fire on left click and its Twin Destroyer barrels fire on right click. Both pairs have the same alternating firing pattern as any other Twin branch.