[PC Only] Tech Wars is a mod that does not convert the whole game, but it does add 4 human factions and a single alien faction, all with their own units, weapons and bonuses... The mod is in the WIP stage, so...
It's Just the MOTORPOOL which is a lot easier to make, because I never made a mistake in the amount of pixels I needed... So yeah, that's the Motorpool and I'm satisfied with it... Are you satisfied with this? No? That's Okay, because everyone has their own opinion! :D