Skulltaker Halo: CE: Eye Patch
Skulltaker Halo: CE: Eye Patch is an achievement in Halo: The Master Chief Collection. It is awarded for finding and walking over the Eye Patch skull in Halo: Combat Evolved Anniversary remastered mode on The Library. The achievement is worth 5 gamerpoints and can be unlocked on any difficulty.
The skull is behind the Index on the final platform. Instead of running onto the platform to grab the Index, go around while remaining as far from the Index as possible. The skull will be waiting on the ground right behind it.