Today steam have released, a required update for Left 4 Dead.
The update fixes:
- Fixed a crash related to a Crash Course achievement
- Fixed an issue were bots and computer controlled special infected were being reported via “View Game Info”
- Added Team Versus 4 on 4 competitive matchmaking
Linux:
- Add warning if +map is not specified on the command line
- Steam is located by searching .., . and $PATH
- Added -steambin option to specify location steam, overrides search
- Added -steamverify option to add -verify_all when updating with steam