Free Red Dead co-op DLC in June

Rockstar has whipped the chaps off a free downloadable addition to Red Dead Redemption called The Outlaws to the End Co-op Mission Pack.

Due June, this adds six new co-operative missions for up to four cowboys.

Three have been revealed so far. Walton's Gold has players hurriedly stuffing a cart with gold before the mine blows; The River sails players on a raft down river towards a rebel stronghold and hefty resistance; and Ammunition has players assault a Mexican siege force that is bombarding the town of Tesoro Azul.

There will also be new multiplayer XP rewards, Achievements and Trophies.

Red Dead Redemption will be released on 21st May for PS3 and Xbox 360.