The troops of the 3rd Commonwealth are equipped with unique armaments - lightweight tesla and plasma weapons made from plasticeramic. With this equipment there is less need to field large forces so Commonwealth units tend to be smaller than their Federal counterparts.
The Commonwealth is currently assisting Federal troops on the planet Forsey as peacekeepers in the conflict between Nationalist factions and the Fyoder Corporation, an ongoing "brush war" over water mining rights.
These are British SAS Elite from Micropanzer. I also have a unit of the helmeted version still to paint but I couldn't resist posting these before starting the others. The beret gives these a unique look and I love the big guns.