Try reinstalling Halo CE and getting the latest update (1.08) off of Bungie.net. It should work after that.
You need Halo custom edition to play all the maps, you then transfer all the maps you've downloaded onto the folder that contains the other maps in Halo custom edition If you are actally talking about the normal Halo combat evolved then I dont know what you are talking about and whoever answered this question before has no idea either
Do u have Custom Firmware? if you do, drag it to Game folder. If not, i dont think you can
why dont u ask a custom zombie\
Not really it's an online game that can be played offline, but would never have won Game of the Year for the Offline portion of the game and they have so many downloaded extras
Fit Custom Shirts is best in my view.
i dont know man
no, nothing can be first edition without a stamp. if you dont have a stamp your not first edition,
You dont
Vista Starter and Vista Home edition
i dont think so
One would be Dead Frontier.
i dont think so