This looks to be the final footage from DesertFox Airsoft of the Revelations 7 event that took place at Ballahack Airsoft in Cheasapeake, Virginia last December 2016. This event is an "Open World" one, which will probably remind you of the "Open World" video games such as Ghost Recon: Wildlands. Revelations 7 is almost an anything goes event where players need to form and break alliances in order to survive.