When the UNSC would take a battlefield and they were weary of a counter-attack, hey would call for a Armadillo. The Armadillo is a one man observation post that would be carried by a Pelican. It has a radar that can relay the enemy's position back to base and has several turrets to defend the post while reinforcements come. After the battle a Pelican can pick it up. This was made solely from extra parts from the Scorpion.