Halo 2 proves everything is great in pairs. Master Chief and Arbiter, Earth and Halo Delta, Marty's music along with Breaking Benjamin, oh and dual wielding too. This is a true classic, the hype this game got when the trailer first dropped was incredible, and everyone from the internet to the high school hallways back then couldn't wait to see where this game's story and multiplayer went next.
GOG should absolutey preserve this old school classic. Especially since I know a Campaign Evolved edition to this game will surely not live up to the nostalgia this version of the game has, nor really surpass what MCC already accomplished visually.