Halo: The Master Chief Collection

Halo 3: Activate Terminal 7 on Halo.

Halo: The Master Chief Collection

Halo CE: Activate Terminal 10 on The Maw.

Halo: The Master Chief Collection

Halo CE: Complete any level on Heroic difficulty or higher without taking health damage.

Halo: The Master Chief Collection

Complete any co-op level on Legendary difficulty.

Need for Speed: Rivals

Bust a Friend

World of Tanks

Train a Commander to 100% on a skill.

World of Tanks

Immobilize 100 enemies by destroying their treads. MP only.

World of Tanks

Destroy a tank at least two tiers higher than your own. MP only.

World of Tanks

Earn 2x more XP than the 2nd best player on your team. MP only.

World of Tanks

Block more damage than 2x the hitpoints of your tank. MP Only.

Dungeon Siege III

Be part of a conversation wherein four players all disagree on what to say.

Dungeon Siege III

Be part of a conversation wherein four players are all in agreement on what to say.

Dungeon Siege III

Complete the game as a member of a four-player party.

DOOM 3 BFG Edition

Kill two enemies in the same room with a rocket in DOOM 3 Multiplayer

MX vs. ATV Alive

Finish 50 races on Xbox LIVE

Darksiders II

Gift An Item To A Friend

Need for Speed: Rivals

Win a Race against a Friend

World of Tanks: Xbox 360 Edition

Train a Commander to 100% on a perk.

Bike Mayhem 2

Create your own mountain in the editor and publish for others to play

World of Tanks

Play 10 matches as a heavy tank. MP only.

World of Tanks

Play 50 matches as a heavy tank. MP only.

World of Tanks

Block more damage than your team after surviving at least 11 hits for 1,000 potential HP. MP Only.

World of Tanks: Xbox 360 Edition

Receive the most hits (at least 11) of any player on your team over 1,000 HP, and survive.

World of Tanks: Xbox 360 Edition

Play 50 matches as a heavy tank.

World of Tanks: Xbox 360 Edition

Play 10 matches as a heavy tank.

CastleStorm

Finish an Xbox LIVE ranked match.

CastleStorm

Win an Xbox LIVE ranked match.

SMITE

As Ymir, hit 50 basic attacks on enemies who are effected by Frost Bite in a single match.

World of Tanks

Destroy more enemy vehicles than any player in your team during the battle (at least 6). MP only.

World of Tanks

Destroy a higher tier tank by ramming. MP only.

World of Tanks

Spot at least 9 members of the opposing team in a single match and win. MP only.

Call Of Duty 3

Supply ammunition to at least 20 friendly soldiers in a single ranked match. (Multiplayer)

Call Of Duty 3

Revive 10 of your teammates in a ranked match without getting a teamkill. (Multiplayer)

Call Of Duty 3

Capture the final objective in the game mode War. Must be a ranked match. (Multiplayer)

Dance Central 2

Upload a Photo.