Getting a better glimce at how rules.ini works has inspired me. I never play multiplayer, so I figured, why not make my own modifications for my personal use (as in will not distribute). Since It's just for myself, I figured it's okay to do that right? Problem is, I'm not quite sure how. All I want to do is make a few units and structures (soviet psi corps and airfield as an example) usable in skirmish. I don't care if they'd also be made available in campaign missions. I just won't use them in missions if I want to play the regular way.
Any and all help will be appreciated. Again, this is for my own private use. I don't intend to distribute it to anyone.