The "Keyes" mission in Halo: Campaign Evolved has another three skulls and one terminal to find, and you must seek them out while you also look for something else, arguably more important: Captain Keyes. Skull 1: CatchImage: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonClose Image: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonDescription: Enemies throw and drop more grenades. Skull 2: BlindClose Image: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonDescription: HUD and weapons do not appear onscreen. Terminal: ConsumedClose Image: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonObjective: Ascend to the upper deck. Skull 3: PinataImage: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonClose Image: Halo Studios/Xbox Game Studios via PolygonImage: Halo Studios/Xbox Game Studios via PolygonDescription: Punching enemies makes them drop inert grenades.