This weapon is difficult to get, if only because you will likely not be here if you ignore exploration. The weapon is at the beginning of the tank ride, in the first house on your right when you are ready to mount up. Because you will trigger the tanks to move if you go too far, you may want to finish the tank ride, then come back exploring. The large white X-mark will clue you in on which house in the valley houses the M249. It is useful to have when protecting the M1 Abrams in the town square. Consider getting this weapon before re-grouping at the red smoke after destroying the Zavrograd communications array.