Background
Siege Engineering: Engineers often set up and build defensive fortifications (bunkers, trenches, and walls) artillery (gun towers, and weapon reinforcements) and orbital defense platforms (ground attack satellites, anti-ship satellites and orbital flak). Natural formations such as caves, ancient temples, canyons, and even asteroid fields can form the basis of an outpost. This PC emphasizes the importance of this kind of constructive support in warfare.
Motivation
I like working at the scrapyard so I can contribute to the family/help my parents.