The theory would be can you create units for an ai team and tell them to attack move? (building them up in waves and sending them at human players working together to survive.
You want the puppet master server mod, or enable Uber's very own cheat mods (all of them). To do this, you will need PAMM. A handy tool to have is wondible's unit toolbox mod so you can select which units you want, instead of copying and pasting existing units. ctrl+c to copy units, ctrl+v to paste units. To use the unit toobox, you need Uber's cheat mods, so make sure they are enabled.