How do you adjust the mouse sensitivity when already playing inside a match and not in the options menu? if my memory serves me correctly, try opening the console and typing "sensitivity". It should give you the current sensitivity value, and you can adjust it by typing into the console again "sensitivity [new value]" (minus the brackets).
Login to your router. Locate your routers port forwarding section. Put the IP address of your computer or gaming console in the correct box in your router. Put the TCP and UDP ports for your game in the matching boxes in your router. Intermittently you have to reboot your router for the changes to take effect.
Once enabled, you can open the console by pressing the ` (grave) key on your keyboard. For some, pressing the ~ (tilde) tilde key will work. To run commands, type them into the console and hit enter/return on your keyboard. For more help using the L4D2 console, see our Left 4 Dead 2 Console Guide.
No Mercy is the first campaign in Left 4 Dead and spans five levels. The first level picks up where the game's introduction cutscene leaves off. The Survivors hear from a passing rescue helicopter they can be evacuated if they make their way to Mercy Hospital. On their trek to safety they encounter Infected -filled apartment buildings, city
7aJRs.