The Comet Tank is unlocked via Hammer Specialization. An improvement of the Cromwell tank, the Comet has thicker armor, a much more powerful main gun, and retains all of the original vehicle's speed and agility.
The 77mm High Velocity Gun is perfect for engaging and chasing enemy targets- both tanks and infantry are prime targets, although it it still more effective verses vehicles. With it's formidable armor and speed it is possible to break through the enemy lines, destroy the target and then safely retreat.
Like the Cromwell, the Comet tank can be upgraded with a tank commander to increase veterancy rate and improve sight range. Also like the Cromwell, the Comet tank can fire a smoke shell to block line of sight, occasionally saving this very expensive unit from destruction.