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Call Of Duty: Ghosts Campaign Is Only 4 Hours Long. Gaming Blend Battlefield 4 has already set the bar pretty low with a campaign mode that clocks in at around four hours, according to most reviews. The story is too old to be commented. I'm calling it, the next COD won't come with a single player campaign.
A campaign that's over 25 hours long, not counting side content, sounds just fine to me. That sort of length is rare outside of the role-playing game genre these days. The God of War games, perhaps the closest match to the Darksiders series, each take about 10-12 hours to finish.