You can get 43 achievements offline on halo 3 im not sure on odst.
no you cant
yes but it is really hard you have to go onto online then choose how many players you want that is how you do it
Unfortunatly you can't.
offline firefight coop surpports online 16 players, system link 16, and 4player split screen.
Either get wifi or ethernet hooked up to your xbox and go into matchmaking or for two player offline just go to custom game.
You can get 43 achievements offline on halo 3 im not sure on odst.
No, halo 3 forge is not offline, you may play it online with friends or others.
Up to 16 with system-link, but only 4 with split screen.
halo 3
Inheritor.
To get credits in Halo: Reach with a silver, or offline account, you need to play offline Campaign, Forge mode, or local Custom Games.
you don't.
no you cant
yes but it is really hard you have to go onto online then choose how many players you want that is how you do it
Heck yah it is
Yes. its 2 player offline and 8 player on xbox live.