The SB-2M-105 was an upgraded version of the Soviet high-speed bomber SB-2M, which was designed by Andrei Tupolev. Unlike its predecessor, the SB-2M-103U, the new bomber was equipped with M-105 engines, which were more powerful and easier to operate. About 150 SB 2M-105s were produced before the Ar-2 bomber was created based on its design.

The SB 2M-105 was introduced prior to the Open Beta Test. For its size, the SB features a decent payload options. The manoeuvrability of the SB is also very impressive, allowing it to dogfight with less agile enemy fighters and damaging them utilizing the front mounted twin ShKAS machine guns. However the rear hemisphere protection is rather weak with just single ShKAS machine gun in a dorsal turret and single ShKAS in a ventral turret.