Annex: Conquer the World is an anime themed real time strategy game that brings fast paced combat with a diverse arsenal. Play as one of four factions: The East Ocean Alliance, the NEO Republic, the Shadow Organization, or the Renegades as they struggle for dominance all over the world, competing for a priceless red mineral. The game now contains 4 factions, over 30 tech trees, original maps, and tileset. Built using open source RTS MegaGlest, the focus of the game is multi-player and single-player skirmishes. However there are also scripted scenarios/missions!
Finally Neo Republic has a dedicated Harvester unit.
The republic certainly have a lot of vehicles with treads don't they :P
On a side note: For balance reasons I doubled Harvester HP and increased their armor to 5. Before they were so easy to destroy and cost so much they became an easy target to cripple a player's economy.