FirePower is an add-on to Microsoft Combat Flight Simulator 3.0 that adds 18 brand new aircraft, weapons, special effects, sounds, and missions. FirePower adds the nucleus of the German defense for 1945, including the AR234 Blitz Bomber, Ta152 Focke-wulf interceptor, and the He162 Salamander. There is an assortment of German night fighters along with the B-17 and Lancaster heavy bombers. The B29 is also featured which enters the war should it take on a different course, which is armed with the Fatman and Littleboy atomic bombs. The Germans also receive the "Virus House" atomic bomb based on the historical nuclear program during WWII in Germany.