The Desert Camouflage in Call of Duty: Modern Warfare 2 is unlocked at default as well as the previous installment. This will be automatically unlocked along with the Arctic scheme for all primary weapons. This camouflage is superior on desert levels such as Afghan, Rust, Strike, and Crash. However, gun camouflage usually has little help in disguising the weapon's user, as camouflage is usually a sign of rank. It is a very effective camouflage for almost all maps, aside from arctic maps and darker colored maps, such as Estate, Wasteland, etc. The pattern itself was first featured in Call of Duty: Modern Warfare 2, as some members of Task Force 141 wore Desert gear: most notably Captain Price, Rook (in The Enemy of My Enemy and in Just Like Old Times).
An ACR with Desert Camouflage in Modern Warfare 2.