A custom campaign for ArmA2 Combined Operations. Official DLCs - BAF and PMC, are recommended for best experience, but not required.
Trailer for ArmA2 (CO) custom campaign "Chasing Grim Reaper"
Music in Trailer: ("First to Fight" by Ondřej Matějka from ArmA2 Soundtrack)
(Note: All footage from trailer, are straight from the campaign)