Halo: The Master Chief Collection dropped
Achievements
Earned 18 achievements
Collect 500 campaign or playlist medals.
Kill 100 Jackals.
Halo: Reach: Kill the Elite Zealot before he can escape during Tip of the Spear.
Kill 100 Elites.
Halo: Reach: Observe the logo of a buttoned-up mining company.
Halo: Reach: Complete Nightfall.
Kill 100 Grunts.
Halo: Reach: Complete ONI: Sword Base.
Halo: Reach: Find and eliminate one of the hidden Ranger Commander Elites.
Halo: Reach: Complete Winter Contingency.
Complete any co-op level on Normal difficulty.
Kill 100 enemies or players.
Halo: Reach: Access hidden UNSC radio chatter.
Complete 10 missions or multiplayer games.
Play a multiplayer or co-op game at least 3 months after your first game.
Complete a campaign mission or a match of multiplayer.
Halo: Reach: Find the hidden binary signature.
Kill a 343 developer in matchmaking or someone who has this achievement.