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.