Skulltaker Halo: CE: Foreign
Skulltaker Halo: CE: Foreign is an achievement in Halo: The Master Chief Collection. It is awarded for finding and walking over the Foreign skull in Halo: Combat Evolved Anniversary remastered mode on The Truth and Reconciliation. The achievement is worth 5 gamerpoints and can be unlocked on any difficulty.
The skull is on the bottom floor of the hangar, in the hallway where the Hunters ambush the Marines.