Accurate shot
Improves overall tank stabilization: while moving, turning the chassis, rotating the turret, and after firing. Destroying an enemy speeds up the gun reload as long as the skill is active.
Breakthrough
Increases engine power, module repair speed, and reduces stun duration. While the skill is active, hits to the tank speed up the gun reload.
Rapid fire
Reduces the reload time between shots in the drum. While the skill is active, the reload time of the entire drum is sped up, but overall tank stabilization is decreased: while moving, turning the chassis, rotating the turret, and after firing.