Going to buy this, But I am gauging my monies~

online pass is 10$,, Used copy of the game is 45$ and a new copy is 60$

I want to go buy a copy, But I need to know if it is on the disc or in the form of a DLC code that comes on a piece of paper or on the back of the manual or something?...

Also...Does the limited edition disc have any special writing on it to identify it? Because GameStop keeps the discs in these flimsy paper sleeves in a drawer behind the counter separate from the cases

Edit: Looked at pics online. M`k, The disc does say "Limited edition" on it. But what about the DLC map? Is it on the disc or in a redeemable code inside the case?