Here are some images that I came across in my travels of things that I thought would've made good Alliance ships, cyborg soldiers; EDF patrol ships, drones etc.
I always thought that the robot statue shown below would make a good Alliance bezerker: that served as a half-way between a termoid and a cyborg assassin.
There are also images of some Russian scew-propelled vehicles, which made me realise that Caliban's death ball's propulsion method was more practical than I thought.