New Gamer and trying to set up Halo4

Hello! Just recently purchased XBox360 as well as Halo4. We have successfully downloaded the disk but are wondering how to actually play someone? Do you have to have at least two players or is there a game mode that can be used to play one player only?
We are able to see the glowing people (spawns?) but they sit still and do nothing. Please help!

:)

 

How to set up new gamer tag with new email

Hi. I've fully reset my Xbox and I'm trying to restart my Xbox game fifa 16 from scratch. I've set up a new email address, password, etc. I've tried to set up the box with my new address but it doesn't seem to be recognised and after a good while trying
it reverts to my original profile. How can I just set up a new user tag (or whatever it's called)?

 

Trying to set up One S

^Yes. There should be an XBL profile for each person playing. If the game is a digital copy, then only one of the profiles should need to have a Gold account. That profile [Gold] should have Game sharing turned on in that console's settings.

Now for the 'tricky' part. Once you have one of the consoles and its profile set up with Gold and have sharing turned on (sharing should be on by default), then that person should set that console as their 'Home' console. The other person should set the
other console as their home console. Now each person should log out of their respective consoles and log into the other person's console.

Since game sharing allows anyone who plays on the Gold subscriber's console access to the games that Gold subscriber owns digitally, the other person will be able to play those games... and since the Gold subscriber can log into anyone else's console and
have access to everything s/he owns digitally, then they can both play online at the same time. It only works with digital games though, if it's a disc based game, each person will have to have their own game disc.

Hope this doesn't seem too confusing and helps out.

 

You can play coop or single player in campaign

I dont remember if it had coop in multiplayer matchmaking

 

You're in the wrong lobby. Campaign can be played with people locally, or online provided you have Xbox Live. You seem to be in the Forge lobby. You need to be in the War Games lobby to play online.