The Cromwell Command Tank is one of three British units that can gain veterancy experience. Its bonuses benefit nearby friendly vehicles. The Command Tank can gain experience through kills of enemy vehicle units from nearby friendly vehicle units. The share radius is 40 on all British vehicles.
All of the Command Tank's bonuses are stackable, meaning a veterancy level 2 Command Tank has basically double the bonuses of a level 0 one.
The aura bonuses start at level 0, and additional bonuses are provided at veterancy level 2 (48 exp required)
Note that some bonuses apply to all friendly vehicles, and some only for the Sherman Firefly. When it comes to stacking, a Sherman Firefly will only benefit from the weapon reload modifiers that is specific to it, meaning it will not stack with the other weapon reload modifiers provided for all other vehicles.
The Command Tank has no self veterancy bonuses at any level.
Effects: The unarmed Command Tank uses a dummy gun barrel to mask its true identity from the enemy. Massive radios crowd the turret, allowing communication with nearby tank squads and other command elements. — See Vehicle:Cromwell Command Tank for details.