Using various bits and pieces of information but mainly the files from the Github quoted in the previous post, I am able to get the events going.
I also modified the mapgrouproto.xml for the Wreck_SantasSleigh by commenting out the <usage name="Military" /> line.
I was getting more military loot than the gift boxes.
I am still getting 2 small annoying things happening:
sometimes there are 2 santas, maybe I have 2 events at the same location. Still testing that theory.
the ChristmasTrees and the Wreck_SantasSleigh spawn cars in lieu of gifts? This one has me 'stumped'!
Has anyone else made some progress?
