Achievements:ACHIEVEMENT – HOW TO UNLOCKBig Red Button (10 points) – Use a Nuke.Supaweapon! (10 points) – Collect components to complete a Megalaser.Joint Command (10 points) – Stand together with another player to complete one mission.ComSat Uplink (10 points) – Play over Xbox Live with three other players for at least one minute.World Tour (15 points) – Complete the first nine missions.Stockpile (15 points) – Score 5,000,000 points.Cockroad of Freedom (15 points) – Withstand eight minutes of the Red Star onslaught in any Survival game.Cannon Happy (20 points) – Complete 11 missions without Nukes of reinforcements.Ultimate Tanker (25 points) – Finish Mission mode.Freedom