Jump to mission script

[Kami-sama]

So after coming back to Star Wolves 3 and playing all the story paths I've decided to create a script that allows me to jump right before the final battle from any story path. The script already changes motherships, adds a lot of each equipment and faction colored fighter in the game and changes pilots (modded with all perks), but now comes the hard part that I can't figure out. How do I set it to start the storyline right before the final mission (when you're allowed to take anything from the faction's warehouse for free)?