I am working on a Trooper with armor-tech as his craft. While I was making armor for Elara Dorn and Aric Jorgin discovered that they can not wear "Trooper only' armor. I then went to the/your codex to find out what class they really are. To my surprise they are both designated as Troopers. IMHO you cannot have it both ways. If they are Troopers they can wear trooper armor. If they are not troopers, change the codex, and say what they really are.