Click on the picture to download the file.
Spray logos:
Put it in: Steam > SteamApps > Common > Left 4 Dead 2 > Left4Dead2 > Materials > Vgui > Logos
and then browse to it inside the game.
Edited for ingame use by SwiftReal. (Original made my Kripling and Lorikins)
Spray made by Kripling.
Tutorial is included in the file.
<- Thats how it looks ingame!