The steady trickle of Grand Theft Auto IV info over the past few weeks has been low on the co-op side. Fortunately, Eurogamer has reveled a little more about the use of co-op in GTA IV. In an article about the multiplayer side of GTA IV, they also discussed the co-op play modes. Two previously discussed game modes, Hangman's Noose and Cops 'n' Crooks, have been detailed in all their co-op gameplay glory. Hangman's Noose, is a mini-game fest consisting of SWAT team-dodging and helicopter riding. Cops 'n' Crooks is self-explanatory, with one group protecting a person, and the other trying to eliminate the protected person. IGN also has some details on the multiplayer and co-op features of GTA IV, including detailed descriptions of the game modes. Rockstar seems to want to make a complete package, so your co-options should be good when this game comes out (hopefully) on April 29.