Halo: Reach: Trigger a humorous callout on your HUD's position indicator.

Halo: Reach: Access hidden UNSC radio chatter.

Kill a 343 developer in matchmaking or someone who has this achievement.

Complete any co-op level on Legendary difficulty.

Halo 4: Beat the par score on Reclaimer.

Complete any co-op level on Heroic difficulty.

Complete 150 missions or multiplayer games.

Halo: Reach: Complete ONI: Sword Base.

Halo: Reach: Complete Winter Contingency.

Halo: Reach: Find the hidden binary signature.

Complete all Bounty missions. (Single Player Only)

True Jedi in every level. (Single Player Only)

Complete Hostage Crisis.

Driven 50 cumulative minutes in any Ford then entered garage

Earned 50 seconds of air time in any Ford car

Complete 5 Heroic Public Events.

Banked your first score

Completed the Tomb of Eilram

Discovered the Bogano Vault

Joined the crew

Grab sword amidst combat

Trade for rare item

Help a creature in need

Use a cauldron to dye all 4 unique pieces of leather armor.

Kill the Enderdragon

Enter an End Portal

Visit all Nether biomes

Use a Grindstone to get experience from an enchanted item.

Stay underwater for 2 minutes

Take 1000 shots

Get 50 pars

Get an albatross

Take 500 shots

Go out of bounds 50 times

Get 10 birdies

Play a hotseat or online game

Play a full game with a custom game mode

Take 50 shots

Go out of bounds

Get a hole in one!

Fall and respawn once

KO'd 25 opponents in matchmaking games.

Score at least 2 Dunks in the first minute of a Hoops game

Win a game against All-Star Bots with the Hearts Decal equipped

Acquire or spend 30 Emeralds by trading with villagers.

Cure a zombie villager.

Brew a potion.

Relieve a Blaze of its rod.

Connect 3 Chests to a single Furnace using 3 Hoppers.

Eat nothing but dried kelp for three in-game days