These are a couple of sketches I made yesterday for concept designs of the default robot army models. the fully coloured one is a rank 2 swordsman, the wolf - like one on the left is a sniffer robot for searching out rare materials or convicts/criminals.
The very top - right figure is a multi - purpose war robot, armed with both a shield generator on one arm and a sniper on the other.
The behemoth - like robot on the top left is another war model, a faster and powerful alternative to a tank in a desert setting and fitted with a large shield generator that guards the head
The other drawings that I have not described are random ideas that I probably will not consider using in the future.