I got the same problem as you, assuming you're trying to play the single player mode.

This is what i did:
1) Install Origins
2) update origins
3) install BF3 (retail copy) or download BF3 (digital copy)
4) download the 400mb patch
5) after download complete, Origin will something to BF3, don't close
6) once done, remove the internet connection from your PC/Laptop (remove the LAN or turn off WiFi)
7) Click the "Battlefield 3" icon to play.

Hope this works for you.