Microsoft has announced that the Gears of War "Hidden Fronts" map pack will become a free download starting this Labor Day (which is Monday for our international friends). The map pack will officially become free starting at 2:00AM PT September 2nd. It should be noted that this isn't a timed promotion akin to the XBLA price drops this weekend, but rather a permanent change. So, if for some reason you still don't want the map pack on Monday, you can always pick it up some other time, free of charge. The "Hidden Fronts" map pack includes 4 maps: Subway, Process, Garden, and Bullet Marsh. If you'd like a refresher on what these maps contain, you can view our rundown after the break.