a group of utility units. they are mostly unarmed and serve specific tasks:

magnet: the only armed unit, this is meant to reorient flipped units without the heavy costs of many other units that serve the same purpose.

engineer: a 3-wheeled repair unit. keep with other units on raids for easy repairing

barrier: a cheat and fast walker. use these as lures to draw enemy fire while the attacking units go and do their damage. or, as the name suggests, a defensive barrier to focus the enemy's attention

radar platform: a cheap scout with no building requirments. because of this, you can get these scouts early game