Modern Warfare 2 developers Infinity Ward wanted co-op in the game’s campaign, but when all was said and done, it “ruined the experience” of the game.
Speaking with VG247 Robert Bowling, Infinity Ward community manager said:
“We did it early on; that’s what Spec Ops started out as, as co-op through story,”but it really broke the cinematic experience, took the immersion out of it, out of the story and the pacing and everything we’d spent so long crafting. It just ruined the experience we were aiming for, so we took it out, kept the single-player for that one player intact and polished it.
“But then there were moments that were really fun with two players, so we took those moments and put them in Spec Ops,” he added.
Spec Ops, as you likely are already familiar with, is MW2’s co-op game mode that allows players to play split-screen locally, over over the internet, in a series of missions, entirely separate from the main game.
“So you can play moments directly taken from the single-player, in Spec Ops, but it’s polished towards those two players so the experience is pure. You really get the best of both worlds: you get the moments that were fun, but the moments that were sh”"-y we took out.”
Spec Ops looks like a hell of a good time, and knowing that the campaign will be as cinematically intense as possible, I’m glad co-op was scrapped in favor of Spec Ops.