I've been playing DL Campaign in 1.2, and through the first 3 levels the Drengin have only built warships with defenses, but never any weapons. They even upgrade defenses, going from 2 to 4 or more, but never put any weapons on. Granted, I played the first 2 levels on Normal, but the 3rd (I forget the name, but with Altarians as allies) on Painful.
If this isn't a bug, what is it?