Halo: The Master Chief Collection achievements

2.63%

Don't Make a Girl a Promise

Halo 2: Collect the Cortana toy in Gravemind.

2.65%

YOLO Strats

Halo 2: Beat the par time on The Arbiter.

2.65%

Leave None Alive

Halo 2: Beat the par score on The Oracle.

2.68%

Betcha can't stick it...

Halo 2: Stick a Plasma Grenade to a Stealth Elite on Outskirts.

2.68%

Terminus

Halo 4: Activate all Halo 4 Terminals.

2.68%

You're No Chips

Halo 4: What do Marines know about sticks?

2.70%

Saturday Morning Cartoon

H3: ODST: Is there a toy inside?

2.72%

Headhunter

Halo CE: Find and claim all Skulls in Halo: CE.

2.72%

Watchful

H3: ODST: Find the 19th Audio Log.

2.72%

A Fine Choice

Halo CE: Complete a Halo: CE playlist.

2.74%

Animal Habitat

Halo 2: Spot the hippo on the walls of Headlong in classic multiplayer.

2.76%

Battle Hardened

Win 250 multiplayer games.