Octo Tank

The Octo Tank is a level 45 Tank, and is upgraded from Quad Tank and Twin Flank. The Octo Tank can shoot in 8 lateral directions. The cannons all fire on command, and just the sight of so many bullets can repel those pesky pestering tanks. Using this automatically increases your crowd control by a whole amount. Great for farming points with the polygons as well. Only those brave and smart enough can counter the bullet hell this tank gives out.

Strategy
You can either go Glass Cannon or General Upgrades. A Glass Cannon build concentrates on bullets and not health, and is vulnerable to tanks high health, movement speed, and body damage. An Octo Tank with general upgrades can generally defend well against anything, but is vulnerable to machine guns, gunners, and any other tanks with high reload speed and max bullet penetration