Big Ben

 is a Tier 5 Tank that upgrades from Exponentiator and Clockwork at level 60.

Design
The probably had a similar front barrel to Exponentiator. It lost its rear swarmer though, it having been replaced with a Clockwork gear that spawns bees.

Technical
Like other Exponentiators, the inherits traits from, and fires a particular Cruiser branch. In 's case, it fires small Clockworks as missiles. These Clockworks work as expected, firing bees from their gears and firing swarms from their rear barrels. However, these swarms are AI controlled and can fly out to independently seek targets.

Trivia

 * This tank is named after the Great Clock of Westminster in Britain.