The Messerschmitt Bf-110 Zerstörer ("Destroyer") was a twin-engined, twin-tailed heavy fighter used by Luftwaffe during World War II. Originally designed as a three-seat escort and interdiction aircraft, its poor showing in the Battle of Britain against single-engined fighters like the Supermarine Spitfire and Hawker Hurricane relegated it to other roles. It went on to serve in many theaters as a night fighter, bomber interceptor, and attack aircraft.
The Bf-110 commonly carried whatever was considered a "heavy gun" at the time in its nose (2 20mm or 30mm cannon, later including an optional undernose gun pod). Early models were able to carry 4 250kg bombs on the outer wings, while later versions could carry two 250kg or 500kg bombs near the wing roots. Some versions meant for bomber interception also carried two or four WGr21 air-to-air rockets.