About LEFT 4 DEAD 2:
1. To run the chosen version of the patch
2. The patch will automatically detect the possible path to the installed game Left 4 Dead 2
3. Choose the desired nickname
4. Wait for the installation
5. Specify label prefix in the parameters-steam (to eliminate errors arising in the VAC connection to the server)
6. Players enjoy
At 5, paragraph reason is that this patch uses the original game exe file with the original name.
PS A small digression, note that if you run the patch in the folder already have patched then be prepared for that if you do not have an intermediate version, it installs it automatically, removing...
