X:\Program Files (x86)\Activision\Call of Duty Black Ops II\zone\ check folders for zm* , those should be the zombie mode files.

So... In your opinion, would zmb_*.sabs and zmb_*.sabl from sound folder be related to Zombie mode or not?

Also, I know how to remove the reference of Zombie Mode from Autorun but which lines should I remove to stop the installer from making Zombie shortcut on desktop?

Test and see i guess (i'm talking about Zombie mode) but as a person who completed the game fully, i never saw any zombie map so you should good to go.

For Autorun, open Setup.ini and delete entries about Zombie Mode (they should be located top of the ini file)

I know about autorun. But what about .iss script.
Which line(s) should I delete/disable to prevent it from making Zombie shortcut on Desktop?

Nothing. Just disabled/delete the lines in setup.ini about Zombie mode, it wont make a shortcut.

are this game is for offline ver

yes you can use for offline

why in my data is only uninstall can anyone help me

Hi. I had a little problem.
When I start the setup for installation, whatever button I push (standard installation, custom, music...), it only starts installation directly in the standard way. How can I resolve? Thanks.

Ah, and if I delete all the *.english.* files in sound directory, leaving only *.italian.*, does the game work correctly, or do I have to leave my language plus english?