This is a German
artillery Field Gun. If this thing is aimed in your direction, you should run. It fires the
same shells as Tanks, so its instant death for any of your men that get hit by it. Its
possible to kill the gunners any way you want, but if you plan on using it after, don't use
explosives or you will blow up the gun as well as the gunners.
TIP: The Green Beret can move the gun around on his own, so you can move it
to a better position, or chase the enemy with it.