On insane Go to the level where you first meet Dizzy on the rig. whwn the level begins go to the edge of the rig in the back facing the barn. look for a cow boy hat and shoot it with your pistol.( HAS TO BE A PISTOL) Marcus should say "That's one" then go to the opposite side ther should be water tank like things look for the second cowboy hat. shoot it with the pistol .( HAS TO BE A PISTOL) he should "That's two". finally look for the last hat close by the last water tank looking thing shoot it WITH THE PISOL" marcus and the entire crew onboard should have cowboy hats and marcus should say"Yehaaaaw" continue to the corpser that comes out of the ground. he doesn't attack but he has a cow boy hat and says yehaaw.