Halo Combat Evolved is not a Multiplayer game.
Indeed, Halo: Combat Evolved for the Xbox is multiplayer.
Only local multiplayer. Online? No.
Well, Halo Custom Edition is the multiplayer version of Halo Combat Evolved PC. It doesn't have a Campaign, by the way. If you want to get Halo Custom Edition, install the installer and use your Halo Combat Evolved PC Key. The main advantage of Halo Custom Edition is custom maps. Halo Custom Edition is currently in Version 1.0.9.620
I pretty sure there is no 3rd player for halo campaign.
At this precise moment, it is currently unknown. Halo CE Anniversary will, however, use the original halo's campaign levels, but will use the multiplayer system and indeed servers from Halo: Reach.
You have to create your own LAN/Internet server in the Multiplayer menu.
Matchmaking, Custom Games and forge. CTF, Slayer, BTB, FFA, Territories all the halo reach ones as the multiplayer is built on halo reach
Yes halo 1 is halo: combat evolved
Yes it wil and new ones too
halo reach come before halo combat evolved
Go to multiplayer, then go to internet and choose a match to join.