Halo: Combat Evolved Anniversary

aliens tanks plasma rifle unsc fps sci-fi shooter skulls achievements remastered artificial intelligence combat vehicle tank space marine hunter shotgun rocket launcher skull jackals assault rifle cowardly enemies magnum melee useable vehicles invisible enemy difficulty level kinect support sniper rifle wraith banshee the forerunner the covenant covenant elite spartan covenant grunt plasma grenade scorpion pelican invisibility camouflage retro graphics toggle frag grenade a.i. construct ghost graphics overhaul plasma pistol m41 rocket launcher m12 warthog m6c magnum the flood hunters needler tutorials disguised as diagnostics pillar of autumn human-covenant war srs99d sniper rifle ma5b assault rifle xbox live achievements remaster alien world