Bessemer

 is a Tier 5 Tank that upgrades from Ascender at level 60.

Design
The is similar to the Ascender, but its dark "fan" of barrels becomes the same dark gray color as a barrel's outline. It also gains a barrel-colored octangonal shell like other debuff immune tanks such as Buffer and Kevlar layered under all of its barrels.

Technical
The fires Steelixes that are immune to debuffs just like the tank itself. Other than the tank's and its projectiles' debuff immunity, the stats seem to be the same as Ascender's.

Trivia

 * This tank is named after the Bessemer process, one of the earliest successful methods of mass-producing steel. It may have also been named this because it sounds vaguely similar to Ascender.
 * This tank and the Metal Oxy are the only tanks to be debuff-immune while also firing debuff-immune projectiles.