Admiral MS, why are optional Stat 3 and 4 not recommended currently? (Just curious)
I'm not exactly sure why, I made the script over a year ago. But as far as I remember Freespace had the habit of crashing randomly when using these and I couldn't figure out why. If I think about it the reason could be as well that the engine was unhappy about all the manipulation work going on at the same time
I guess it's as safe to use them as is the whole script. The sample missions are using both stat 3 & 4 without problems anyway.
This tutorial thread has taught me a lot, my technique is disappointing and would be better handled by LUA
Actually I thought about extending the script to cover some more stuff like recreating SEXP states but I have absolutely no idea how that should work
So you still need
proper fredding as described in your tutorial to make anything like a checkpoint work. The script helps going around the PPV cap and simplyfies the process of saving and loading to one SEXP for each.
The reason for creating the script wasn't checkpoints at first but getting rid of buggy red-alert and still transport shipdata to the next mission and if possible even in the mission simulator.