Windstorm

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

Design
The is simply a Ranger with a weird, wide barrel about halfway down its barrel. It is about as thick as the main barrel is wide, and is the width of the whole tank.

Technical
The is pretty much just a Ranger with a bizarre knockback mechanic. It is claimed to be able to knockback enemies, but the bullets act very strangely and often bounce violently off of enemies instead.