Installing the Call of Duty 4: Modern Warfare PC Demo is quite easy. I have finished the demo and I have realized that I am a person who can only play on consoles. It probably did not help that I was using a tablet mouse witch is not the most sensitive thing. The online multiplayer beta on xbox live was much more fun and longer; the PC demo just has one level. If you have seen the trailers you will recognize the level. The level is called “The Bog”. Originally I thought that COD4 would not have a cover system – it does. The cover system is simple: lean to the left, lean to the right. However, I will not buy this game for the PC, but you should download the demo. It is free and provides a good 30 minutes of solid gameplay (depending on level difficulty) .