Regiment

 is a Tier 5 Tank that upgrades from Octo Tank and Terminator at level 60.

Design
The is just an Octo Tank with all of its barrels upgraded to Pounders. The barrels are now too wide to fit and every other one is mounted on the layer below its neighbors. The barrels in the cardinal directions (relative to the mouse) are layered above them.

Technical
This works like an Octo Tank mixed with Pounder. Slow reload, but good damage.