I enjoyed using the Cadian plastics to expand both the Praetorians and Mordians. Again the Cadian Flak armour can easily be classed as carapace next to the metal models. The addition of a peaked cap in the command squad set was a god send.
Mordian Master of Ordnance
Shown below is the first half of the Mordian Stormtrooper squad. Finally the Mordians have plasma weapons! The backpacks are from the Robogear trooper figures.