Halo 2A MP: In Assault, take, plant, and score from the bomb spawn without dying or dropping it.

Halo 2A MP: In King of the Hill, kill 5 opponents within your controlled hill.

Complete 25 Bucket List items co-operatively.

Visit the Storm Island Car Meet and win 3 Showdowns.

Complete every Co-op Storm Island Bucket List Challenge.

Kill the target by shooting nearby explosive barrels.

Kill the target in the vehicle by shooting its weakspot.

Kill the target in 7 different ways.

Kill the target with a chain reaction.

Kill the target with a grenade.

Crush the target with a bell.

Killed the officer at the meeting with a testicle shot.

Help a Captain survive a Recruitment Power Struggle, and then kill him and all his new recruits.

Perform an Execution on a flaming Berserker.

After an uruk kills you to become a Captain, help him become a Warchief, then kill him.

Brand 5 Bodyguards of a Warchief, turning them against him in combat.

Halo 4: Beat the par score on Dawn.

Vanquish 50 Vampire Zombies

H3: ODST: Play a game of Halo 3: ODST on the 22nd of any month.

GTA Online: Complete a Heist Finale without taking any damage.

Finish a race on every race track in Forza Motorsport 4.

Finish 1st in every single race in the Event List in Career play mode.

Max out a community member's Cardio skill.

Sacrifice your life in a blaze of glory.

Kill 25 zombies with incendiary shotguns.

Perform a hand to hand double kill special attack.

Intercepted 5 mysterious supply drops.

Craft ammunition 5 times.

Build one of every type of facility.

Build 8 outposts.

Level-up an item 100 times

In Quick Match or Co-op mode, use all skills for Warrior, Cleric, and Mage.

Vanquish a Treasure Yeti in Garden Ops

Collect 7 Diamonds from the Treasure Yeti

Earn the Onyx "War Supporter" medal

Score 20,000 points from one jump on an FMX track

Survive 3 minutes on at least a 3 star Wanted Level with all three characters together off mission.

Kill every type of slime.

Corrupt most of the World.

Smelt 10,000 bars of metal.

Use every crafting station.

Obtain every type of armor.

Find ALL the pets.

Hallow most of the World.

Craft 300 items at an anvil.

Get every NPC to move into housing.

Complete 5 quests in a single co-op game with the same 3 partners

Complete the 'Slumdog Billionaire' challenge on 'Rags to Riches'

Beat level -1 in 'The Magnetic 10' challenge on 'Junkyard Funk'

Reach and save the hostages without alerting any enemies in Drop 'em Like Liquid