When engaging an enemy in hand-to-hand combat, <Trooper> will kick his opponent in the face.
~3 , Fall Damage.
At close range (random).
"Winner of the regimental Golden Boot."
Faceboot is a low-tier passive Ability granted after unlocking the Skill of the same name. It allows the Trooper to kick their enemies in close combat, knocking them back and down and causing Fall Damage, hampering their actions until they can get up. It can be done even when holding a gun, so a good Assault Trooper shouldn't ignore such a trick. However, Rats get the worst of it – this attack doesn't allow them (if timing is right) to get in for a strike.
If an opponent who's been kicked is pushed against the side of the field (like in the image to the right) he will not be pushed back or knocked down, and the trooper will keep kicking him until either of them dies.