[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...
So is the same old harvesters... Except now they have some form of defense...
The Ant has a turret which is an attachment so don't expect the Ant to be able to target enemies. The turret has 2 laser machine guns.
The Herbivore has 2 modes - combat and normal which is a norm for all harvs but the Ant. The normal mode is non-combat one. The combat mode has a turret (attachment) and that is basically it. The turret has a plasma autocannon...
The Rico is the same as before (like most of the harvs) in that it hasn't changed much when in the normal mode. In combat mode it has better armor, more health, it's slower and it has a turret which has a machine gun and a missile launcher.
The Worker basically has a 2 non-combat modes - normal and stealth... Normal is normal and stealth is just the same but "invisible" to the enemies that can't "see" it. It can remain cloaked as long as it has energy.
Then we have the Harvey... In combat it has no armament (same goes for the Worker) and only it's shield is affected. It's shield is better - more hit point and faster recharge. That is about all (also the new shield is visible)...
They can still harvest resources with no problems... Forgot to mention that I FOUND and FiXED the weird problem the harvesters had which I had made myself because I didn't pay any attention to the animation part where the last frame was some strange number most of the harvs don't have...