Topic on Talk:Halo: Combat Evolved
There's a couple of mods and fixes that are updated with new features as well as ones that are possibly no longer available (outside of maybe outdated builds), have moved somewhere else (Open Sauce is now installed through AmaiSosu) ,incompatible with certain mods (newer Chimera now appears to be not be compatible with HAC2 and/or Open Sauce when used together). Some mods like Halo CE Refine has also appeared to clean things up with restoring the single player campaign as far as installation goes.