We have our review of Call of Duty 4: Modern Warfare on-line tonight, the PC version to start with. Quite honestly the best shooter I've played this year, just ahead of The Orange Box, just.

The single player campaign is played out across four acts, each of which is perhaps slightly more than an hour long for the experienced gamer, perhaps six to seven hours length in total; definitely not the longest single player game you'll play this year. However, it's that good it will most likely warrant a play through on one of the harder skill settings at a later date.