Halo: The Master Chief Collection

Halo CE: Activate Terminal 4 on The Silent Cartographer.

Get killed by the Guardians.

Halo 2: Complete Cairo Station.

Halo 2: Complete any campaign level without dying on Normal or harder.

Halo 3: Beat the par score on Sierra 117.

Complete 10 missions or multiplayer games.

Complete a campaign mission or a match of multiplayer.

Halo CE: Complete The Maw.

Halo 4: Beat the par time on Midnight.

Halo 4: Complete Infinity.

Halo 2: Complete Regret.

Kill 100 Flood.

Collect 5,000 campaign or playlist medals.

Halo 4: Complete Reclaimer.

Halo 2: Fight alongside the legendary Chips Dubbo and listen to his words.

Halo 4: Complete every level of the game on Easy difficulty.

Halo 3: Beat the par score on Crow's Nest.

Halo 2: Beat the par score on The Arbiter.

Halo 3: Beat the par time on Floodgate.

Kill 100 Elites.

Halo CE: Find and claim the Foreign skull in remastered mode.

Halo 2: Complete Outskirts.

Halo 2: Complete The Oracle.

Halo 3: Activate Terminal 1 on The Ark.

Halo 4: Complete Requiem.