You can't delete it, but you can opt not to play it.
no you cant
No it dosent
no
no
no, your online rank will only be deleted if you delete your xbox live/psn account.
You could delete the system 32 file, in your windows folder.
Will "удалить" (udalit).
If you want to delete a mission then you must , click on the mission thing then you click the little book with a pencil the it should say delete mission or other then you click it that's how I delete my mission's xD :) <3 !!
no, but you can reset them to the default classes that the custom classes start at after you pretige/ firts go on multiplayer
Well, it is not the greatest Idea in the world and yet I don't even think its possible although you can go to your System or downloaded content and check if you can find it anywhere to delete. [ Once you delete the content the chances are you will have to buy it back ]
I`m not completely sure but it probably does because it is already on your hard drive unless you delete it but it should work.
You will not delete his game data if you create a new account on the console and sign into it.