One of the largest and most expensive building models ever produced by Delvin Constructs, the A-Fac 333 could be tooled to produce almost any common large vehicle design, but the Empire used them almost exclusively for their AT-AT and AT-AA walkers. The Empire chose the A-Fac 333 after discovering that the original design chosen, the Delvin Constructs Model Fac H-121, could not provide the level of attention such advanced vehicles required.
- Star Wars: Empire at War: Prima Official Game Guide
- Star Wars: Empire at War: Forces of Corruption Expansion: Prima Official Game Guide
- The Complete Star Wars Encyclopedia