The Flakvierling 38 20mm Quad Anti-Aircraft Gun or Flakvierling 38 is a rapid-fire anti-aircraft emplacement. It appears in several single-player missions in Company of Heroes, and can be fielded by the Luftwaffe Tactics Panzer Elite company in Company of Heroes: Opposing Fronts. Although very useful against enemy aircraft and paratroopers, it is also quite deadly against ground infantry and light vehicles as well.