Covenant weapons: How do they work?
Foreign is a skull in Halo: Combat Evolved Anniversary.
This skull can be found behind the locked door the Hunters come out in the Hangar Bay. Important to note is this door only opens when Covenant are near them, so the player should run in whilst enemies are coming out of the door.
None of the Covenant weapons can be used or picked up by players. Thus, players must relay on the UNSC weapons they start with or find during the level.