Call of Duty 4 Remaster Campaign Now Playable on PS4 for Some

If you preordered one of the premium versions of Call of Duty: Infinite Warfare on PlayStation 4, you can start playing the campaign of Call of Duty 4's remastered version today.

As announced previously, preorders for the $80 and up versions of Infinite Warfare get to play Modern Warfare Remastered's campaign 30 days early--and that's now.

If you preordered a physical copy at a retailer you will need to complete the purchase, at which time the store will give you a PlayStation Store code, Activision said in a FAQ. People who buy Infinite Warfare on a physical disc will need to have the disc inserted to play Modern Warfare Remastered when the game launches in full on November 4, Activision recently stated.

People who preordered a premium version of Infinite Warfare digitally from the PlayStation Store should automatically be granted access to the Modern Warfare Remastered campaign.

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On launch day, November 4, people playing the early access version of Modern Warfare Remastered will need to install the full version of the game. Not to worry, though, as all of your progress will carry forward.

The early access to Modern Warfare Remastered's campaign is only offered on PS4 and there is no multiplayer. For more on how you can play Modern Warfare Remastered early on PS4, read the full FAQ.

Modern Warfare Remastered's campaign and multiplayer will be available for everyone who buys a premium version of Infinite Warfare on PS4, Xbox One, and PC on November 4.

For more on Modern Warfare Remastered, check out GameSpot's playthrough video above.