A moderator on Spuddley's channel had a record of 24:52 on the Skaygarden map Modern Warfare 3 gun game challenge. My new time was 21:56. The category is really easy to get in to, but PC only. You just need the [ZM] MODERN WARFARE 3 WEAPON MOD and the SKY GARDEN CHALLENGE map. Spuddley himself has attempted it a few times. Here: is a video of Spud attempting it. Here: is my record.