The Crusader AA Mk. II was an anti-aircraft modification of the British Crusader III cruiser tank. By the end of 1942, the Sherman tank, which had better armament and protection, was gradually taking over the role of the main cruiser tank. British designers then began working on a project to modify the Crusader tanks for other combat tasks, including as self-propelled anti-aircraft guns.

One such anti-aircraft gun was the Crusader AA, which was photographed during the Normandy landings on June 7, 1944. Nicknamed "Skyraker" (and "The Princess"), it was part of the 5th Royal Tank Regiment of the 22nd Tank Brigade of the 7th Armored Division, known as the "Desert Rats." To reduce the risk of friendly fire from Allied aircraft, a star emblem in a circle was painted on the turret roof.

The Crusader AA (Overlord) was introduced in Update 2.47 "Leviathans". This vehicle is based on the aforementioned tank, except it has a camouflage net on the turret.

It is the same Crusader AA Mk. II from the British research tree. Compared to other anti-aircraft tanks, it stands out due to its combination of good mobility and decent armor. Its twin 20mm autocannons allow it to effectively combat enemy aircraft. However, their mediocre penetration prevents the Crusader from fighting most armored vehicles.