duckroll said:As for his working experience on MGS4, what do we know which has been shared, is that his input on the game involved helping the staff working on the game understand the implementation of shooting and cover mechanics which would be more logical and intuitive to players familiar with such games. MGS4 uses much more shooting action than any previous MGS game, and it was important to get right. The interface and the controls, as well as how the game delivered feedback to the player, were all aspects where he helped tune.
Since Halo is also a series which is heavily based on shooting action, and feeling "right" is a major component of Halo's gameplay design while at Bungie, I think it makes perfect sense that they would have been interested to have someone like Ryan Payton on board.
I don't want to sound mean, but Payton basically made MGS4's controls less shitty. That was never an area where Halo was lacking - Bungie nailed it with Halo 1 and just about every modern FPS on consoles since then uses that control scheme.
Microsoft certainly did not need to hire a guy to make Halo "feel right", that is the one aspect of Halo 4 that I expect to remain pretty much identical to past games.