Abacus Software, Inc. has release a new add-on for Microsoft's COMBAT FLIGHT SIMULATOR called BEHIND ENEMY LINES. The fictional voice-accompanied adventure takes you into the heart of Axis Germany. Players volunteer to fly a critical mission for the Allies. After sneaking behind enemy lines, one must follow the voice instructions from the mission commander or from secret agents. BEHIND ENEMY LINES features 30 new missions, 16 for the RAF and 14 for the Germans, and 3 new aircraft: the Supermarine Spitfire MkIX, the Schweizer 2-32 glider and an UltraLight. The game is priced at US$29.99.