MustaphaTR's D2K mod is a small mod based on original D2K mod of OpenRA. It includes 8 sides (Atreides, Fremen, Ixians, Harkonnen, Corrino, Ordos, Mercenaries, Smugglers) as playable and has special units and abilities for each.
They have low Health but are quick and cheap. Armed with machine guns that are good vs infantry.