I just finished playing the Brumack mission, it is a mission between Act 4 and Act 5 in Gears of War PC. This is a complete mission where you have to restore power to a bridge to get to the trian where the light mass bomb is on. During the missing you are being chased by the Brumack though the city and then at the end of the mission you fight the Brumack. Now that I have played this mission I was wondering why it was not in the Xbox version of Gears of War? The mission is excellent and I would pay for it as DLC if it were available. If anyone has a PC I would highly recomend playing it. The mission adds to the story and it would be cool to play this co-op via xbox live!