The Me 262 C-1a was a single experimental prototype of a standard Me 262A fighter that was modified with a single Walter HWK 109-509 rocket engine, used in the Me 163 Komet rocket fighter. The engine was put into the tail of the aircraft to enhance the speed of the 262 for interception of Allied bombers, thus being given the name "Heimatschützer": Home protector. The aircraft was first flown using combined jet and rocket engine power on 27th February 1945.

Introduced in Update 1.39, the Me 262 C-1a is intended as an interceptor, climbing very quickly under the power of the booster rocket combined with its two jet engines. However, the booster rocket has a small fuel supply and will only last a few minutes of use. Without its booster rocket, the Heimatschützer functions very similarly to the Me 262 A-1a, with the same armament, engines, and airframe, though with slightly worse flight performance due to the added weight.