Yes but it won't be supported by matchmaking.
Once You Make A Map, Invite Your Friends To Play On It In Custom Games, Or Invite Your Friends To Make A Map In Forge.
no
no you cant
yes simply go to multiplayer and it is the same set up as halo reach
Matchmaking, Custom Games and forge. CTF, Slayer, BTB, FFA, Territories all the halo reach ones as the multiplayer is built on halo reach
Halo Reach is definitely for single player. Campaign and Forge, you can do alone, but you will get the most amount of entertainment out of the multiplayer modes.
Yes, Halo: Reach will include Forge.
The Falcon is like any other vehicle. It is on Forge, yes. But it is also in both campaign and multiplayer.
forge is a mode where you can customize your own maps for multiplayer
No You Can't, But The Original Forge (Oracle) Is In Halo: Reach. (What Is AI?)
To rotate objects in Halo Reach's forge hold down the left trigger
How to hack halo reach forge online
There are no CPU players for multiplayer in Halo Reach.