I dont know. :shrug:
create a machine shop (something more than a repair bench. Would be great to upgrade your weapons on a lathe or milling machine.
There are already no2 tanks. Its right next to the O2 tank in the picture. Blacking out on using the NO2 would be funny...
If you can come up with the lathe mesh, I could script it to make better weapons.
Repair skill for the physical hardware upgrades.
Science for the electronics upgrades.
That would be fun to add to the Overseer terminal. I will look into it now.