Are there ways to track stats / progress in Left 4 Dead?

Just wondering if there is a way to keep track of your progress in Left 4 Dead?

I'm most interested in a way to keep track of which levels you have beat and on what difficulty levels so that I can focus on trying to beat all the levels.

At the very least, is there basic stat tracking or online rankings?

Thanks for any info.

pc version has those on steam

Bump.

Anyone know about whether the 360 version has a way to track which levels you have beat so you can keep track of this and try to beat all the levels on different difficulty levels?