Print it yourself and fold it up, then unfold it and give it to the troop.
If you dont have access to a printer.... find a green/blue piece of paper.... draw some brown, green, red, and black lines in random patterns, fold it, unfold it, and give it to to troop.
This picture was taken looking down on the diorama I build for the panther group build. You can see the map on the back of the jagdpanther, and one folded on the commanders lap (under his arm). The maps used were printed on my printer and folded/unfolded.
good luck :)