No, they are two completely different multiplayer setups.
Thank you based god.
yes
16 max (system link) 4 on local
Yes, but only to play system link xbox games that are compatible on the 360 (like Halo, Halo 2 and the like) but not to play system link on games that are on both (Battlefield 2 Modern Combat) using one 360 version and one Xbox version
Use the system link cords and box to connect the 2 xboxes and select system link and one team needs to make the game and the other waits.
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
No, Halo 5: Guardians does not support system link play. The game is primarily designed for online multiplayer and does not feature a local multiplayer mode that allows players to connect multiple consoles via a system link. Players can enjoy split-screen multiplayer on a single console, but system link functionality is not available.
The first halo does not have xbox live. Only system link.
The only things that would be counted as cheats in Halo 2 are the effects from the skulls when activated. More information on the Halo 2 Skulls is provided in the link below.