While we wouldn't recommend these for a first run through – Veteran features more aggressive enemies and an even rougher time-to-kill, with Realism increasing the challenge further by offering Veteran settings with a limited HUD – they are available to you from the start. If, on the other hand, you want a serious challenge then there are Veteran and Realism modes available to you. If you're finding Recruit and Regular to be a little too easy, Hardened should provide a nice challenge to those with a lot of experience with the series. This time around, Infinity Ward is taking the reins with the release of Modern Warfare, not to be confused with Modern Warfare Remastered, which was a remaster of a much older game in the series.

Recruit has been retooled to be an even better entry point for those that are new to the genre, giving you an opportunity to experience the story without dying every other step. While Infinity Ward has set 'Regular' as the baseline, there are other options available to you depending on your proficiency with first-person shooters and experience with other entries in the series.

The Modern Warfare campaign comes with five difficulty modes, each of which provides a completely new challenge.

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