The Rebel Siberian HQ is a location in Metal Slug 2/X. This place serves as the Rebel Army's new headquarters after joining forces with the Martians. Mission 6: I Wish to Believe in Love takes place here. After exiting the building, the Regular Army encounters General Morden once more, only for the Martians to betray him and eventually abduct him inside the Dai-Manji, which would then fuse into the Rugname. This prompts the Regular Army and the Rebel Army to form a brief alliance to save Morden from the Martians.