Halo: The Master Chief Collection achievements

2.33%

Chest of Gold

Halo 4: Complete a Halo 4 playlist.

2.35%

How Pedestrian

Halo CE: Complete Halo without entering a vehicle.

2.35%

Brainpan

Halo 3: Find all the hidden multiplayer Skulls.

2.35%

The Will of the Prophets

Halo 2: Collect the Arbiter toy in Sacred Icon.

2.35%

Thermopylae

Win 300 multiplayer games.

2.36%

All According to Plan...

Halo CE: Kill the first group of enemies on The Truth and Reconciliation without being detected.

2.36%

Those Left Behind

H3: ODST: Finish Tayari Plaza with at least one Marine still breathing.

2.38%

Triple Threat

Halo 2A MP: In Ricochet, pass once, score once, and kill at least one enemy in the same match.

2.38%

Spotter

H3: ODST: Find the 23rd Audio Log.

2.40%

Legend

Complete all campaigns on Legendary difficulty.

2.40%

I Dabble in Slaying

Complete one cross-game playlist.

2.40%

HBOrg Special

Halo: Reach: Party with the DJ Brute.