Full list of all 12 Heavy Weapon achievements worth 200 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
Go Ballistic... Use your first Nuke!
Collect components to complete a Megalaser.
Stand together with another player to complete one mission.
Play over Xbox Live with 3 other players for at least 1 minute.
Take a tour of each Red Star country and trash the place! Complete the first 9 missions.
Amass 5,000,000 points.
Withstand 8 minutes of the Red Star onslaught in any Survival game.
Complete 11 missions without Nukes or reinforcements.
Dispel the enemies of liberty. Finish Mission mode.
Defeat all 19 Red Star champions in Boss Blitz mode.
Survive 12 minutes of the enemy's attack in any Survival game.
Destroy 12 enemies with a single Nuke.