Can you level up offline in Call of Duty 4: Modern Warfare?

I don't have Xbox live or even internet, but I would still like to create my own class (as far as I know you have to be on level 4 for that and you have to be online to level up) on COD 4. I also have modern warfare 3 and in there you can level up in the local multiplayer. I was wondering if you can do the same in the first game.

Can you level up without going online?

I don't know if its important but I am playing on an Xbox 360.

Solution 1:

There are no levels in offline, it is simply 5 classes that you can choose from. The only way you can create your own classes is by playing online.

Sorry to dissapoint.

References: Personal Experience.

Solution 2:

Unfortunately, no. There is no offline progress.

Reference

No. Custom Classes are only available in online multiplayer. Splitscreen and system link must use pre-set classes.

If you have the ability or desire, Call of Duty: Modern Warfare 2 does have offline create a class.

Reference

The offline split screen is an exact copy of the online system, though they are separate so they don't transfer between each other. You can do everything in split screen, that you can do in online play.