When initially this army was planned it was soon obvious that some kind of riding Knarloc would be needed as a weapons platform. The initial plan was to convert the old metal Cold Ones with Kroot riders and burst cannons to represent Stealh Suits. But then Forgeworld released the smaller Knarlocs which just begged to be included as stand-ins for Crisis Suits. We tried to use a single rider, but that looked a bit stupid, so in the end we settled for the slightly more involved variant with rider and gunner. The platfrom was made from a plastic chariot wheel with various other bits here and there. Some kind of power plant would be a nice addition and probably will be added in time.