Call Of Duty: Ranking Every Game From Worst To Best

5. Call Of Duty 2

Call of Duty 2 built on the excellent model the first game established, making for a more clinical if also much more intense, challenging, entertaining and artistically competent shooter. For starters, CoD2 introduced the widely-copied if relatively controversial regenerating health mechanic, giving the game a more fluid feel and preventing dull fetch-quests as players had to run around the battlefield searching for health. Even with this intuitive addition, CoD2 is still probably the hardest game in the series, thanks to aggressive, hung-ho AI opponents who aren't afraid to hurl a few pesky grenades your way. In short, this is the last game in the series that managed to serve up a campaign combining fun, difficulty and length (it took around 7 or 8 hours for even seasoned players to blast through) in one consistently brilliant package. Blowing s*** up in a snow-laden Stalingrad has never looked or felt so good.