I have this game for X Box 360. On the second level, The Cavalry, the two guys are standing outside the visitor center and they can hear stuff going on. I try to see what's happening, but the game just stays in place (from the point of view of being inside the visitor center). All the directional cursors disappear and I can't move forward with the game. I have shut down the game and come back, but the same thing happens. Help would be greatly appreciated because I literally cannot place this game any further if the game doesn't work. Which would stink because I am enjoying it greatly so far.