I bought Black Ops 2 from 2013. It says I can't play online.

Hello Martin W, My name is David. I am an independent advisor, happy to help you today.

I'm sorry that you are having problems with Call of Duty Black Ops 2, below I will leave you some instructions:
First of all, I advise you to verify that you have a valid Xbox Game Pass subscription.

Reinstall the game: Many users have solved problems with Black Ops 2 by simply reinstalling it.

Verify game cache integrity: This option is available on the Steam1 platform.

Delete the iw6mp64_ship.exe file: This file may be causing problems, so deleting it might help.

Delete configuration files and return to default settings: This may fix compatibility issues.

Use dedicated graphics instead of built-in graphics: If your PC has a dedicated graphics card, make sure the game is using it.

Make sure you install DirectX and C++ Redistributables: These are required for many games, including Black Ops.

Run the game in Compatibility mode: This may fix compatibility issues with older versions of Windows.

Close problematic apps: Some apps can interfere with gameplay, so closing them might help.

Best regards.

me too i redeemed my 48 hours on the website and on xbox it says 2 days trial but when i play on black ops 2 it says The current profile is not allowed to play on Xbox live but on black ops 1 the online works

I have the same problem. I'm using a wired connecion and tested the connection and it's fine. I have internet, but when I want to play online I get an error saying that I can't connect to XBOX Live Account :s

It's pretty stupid cuz I just bought new membership card & Black Ops 2 and now I can' play

just so i know the one that says black ops 2 save game is my online stuff and the one that says black ops 2 world state is my campaign

It's not the worst but its far from the best. To be honest people always *** about MW2 but I can honestly say that's the game I've had the most fun playing online so far. I would have to rank the games in this order. MW2, COD4, Black Ops, Black Ops 2, MW3,
WAW