You can join each others game....
Thank you based god.
yes
No, they are two completely different multiplayer setups.
To play local on halo reach, start at the title screen when you start up the game. Hit main menu, then custom games. That is local gaming. (Meaning people on your xbox, not system link. For system link I don't know how.)
yes
go to multyplayer and press system link then go to host or start a game
you will need a hard drive and invite people.
Yes evry game online does
The first halo does not have xbox live. Only system link.
i think so but im not sure
16 max (system link) 4 on local
Yes, system link.