BirnyX does World War 2 Airsoft in their Operation Door video... "This ww2 airsoft war was filmed during an international airsoft event 'Operation Door' organized by GKDT and Mor-Ho reenactment groups in Kúty in Slovakia. It was based on the true operation Hydra, which was a Royal Air Force attack on the Peenemünde Army Research Center on the night of 17/18 August, 1943 to stop Nazi Germany's V-weapon program.

The plot of the Airsoft war was that Allies proceeded to operation Door to eliminate all remaining missile sites and documents. Admission was only in ww2 airsoft clothing and gear."