How to mod the mission order for the General's Challenge, or, I fucking hate General Juhziz

I've been having a lot of fun playing the General's challenge on the Shockwave mod... until I get to Juhziz. I'm fairly confident that I could beat him if I got my base set up with proper defenses. But I don't get a chance because his attacks begin early and do not let up. It doesn't help that the plateau you're given for your base is so big that you can't quickly move troops between north and south. And for me, at least, it crosses the line from "enjoyable challenge" into "frustrating slog". Especially since the other generals' missions are unattainable for me.

So I've now resorted to modding. It feels like changing the order should be fairly easy once I can find where the order is defined. I've poked around in the game files, but I have no experience with modding Generals. Can anyone point me in the right direction?