At "The War XII" in Moscow Airsoft Pyrotechnics/TAGInn tests the "Project Zero" together with the helmets from WarQ... "Real-life tests of the TAGinn 'Project ZERO'. Compatibility test of WARQ helmets to be used with TAGinn products. All the tests has been passed successfuly! We are HIGHLY RECOMMENDING to use WARQ helmets with all TAGinn products."