no... only if you want to play online matchmaking
No, I play halo reach on my 4gb xbox.
Yes you do and you also need an Xbox LIVE account.
not if you make your own gametype and map. then you can play in custom games.
If you mean do you need halo 3 to run Halo Reach then the answer is no. You can just buy a copy of Halo Reach pu it in your games console and play. I suggest if you do get it you get the limited edition one. Gamertag XBL: CODfatherSPUD
Yes, but you need to do it over xbox live.
No! Forge World on Halo: Reach is completely free, provided you have the game and Xbox to play it on!
no you dont they are each there own game
No, you don't.
no,you can play as an elite on firefight and multiplayer
Nothing
You need to have an Xbox Live Gold Membership to play with anyone, so yes...
Any one can play Halo Reach, as long as the person has a Xbox (Microsoft product). Halo Reach can not be played on a PS3. Also, you need a game card so you can play online. But, if you do not have a game card you can still play regular