Enable rotorlib.
Remove ASR_AI3 specific code to set unit skill (I don't think it did anything anyways).
Create cargo net supply boxes instead of normal supply crates.
* Don't set any helicopters as crappy PO3 'lift choppers' anymore. Instead we can just use the new lifting stuff.
* Replace CH-148 Cyclone with new Huron heavy lift chopper
* Add a hummingbird back in
* replace a couple of Hunters with Technicals (one armed, one unarmed)
Update to version 27.