Adrenaline

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

Design
The looks nearly identical to the Bismarck, but it has a bright green ring around its body layered under all of its turrets.

Technical
The operates very similarly to the Bismarck but with a unique mechanic. When it takes any kind of damage, its reload increases by 1% for 3 seconds. This buff can stack repeatedly, the only limiting factor is the 3 second timeout for the buff.