"Scouts only report one guy... This will be a walk in the park."
Brick S***house is an unlockable passive ability. Once acquired it adds +3 Life Points on top of the Trooper's maximum, and gives cover bonus to all dummies standing behind the Brick S***house. According to the French description translated, the skill improves Dodge. A reasonable upgrade for Assault Troopers for making their teammates harder to hit, and a useful bonus to any others due to increase in endurance.
The cover bonus is negated by Blind Fury.