Saw this shared somewhere on discord.
I’ve known about this glitch forever but I’ve never seen anyone effectively use it in a real game. Apparently ZeLoT has been doing some crazy troll timing pushes with this.
This is done by queuing a tank and spamming lift off immediately afterwards. If done successfully you will have a floating factory with a qued tank. Simple switch this factory out for your second factory and you are now building two tanks from two factories with one mac shop.