Speaking to 1UP, Microsoft's game director, Andre Vrignaud, has picked out three Xbox 360 titles he believes sport the greatest co-op-play in games.
"Certainly, a lot of people at Microsoft are believers in co-op," he said. "That can be seen throughout the organization, including the platform side and Microsoft Game Studios. I'd highlight Crackdown, Halo 3, and Gears of War as having some of the best co-op implementations in the industry today, and that's certainly not by accident."
Vrignaud recently put together a "Co-op Gaming Bill of Rights" on his blog, a piece now widely quotes among those in love with the feature.
"I'd certainly suggest for anyone who is interested to take a moment to read through the comments on the [Bill of Rights]," Vrignaud added. "However, if I had to summarize, I'd say people were pleased to see a variety of concepts and ideas that had been discussed over the years collated together in one place."
Have a read. Interesting stuff.