Seems my world is stuck at score:9611 lvl:20 on Himfjäll after cleaning out my 40ish rivals last week in an attempt to alliviate my crashing issue. Nothing I take down now adds to the score or spawns a Rival.
Crashes are still present but not as often as before.
Farmlands score still raises, managed to spawn a Rival in Farmlands at Score:4658 lvl 15
9611 is max score believe it or not.
Yes but I’m still not getting any rival spawns and I have no way of resetting/decreasing the score of the region to start over. Dieing havent spawned one either.
But I havent tried opening up my game to let someone else fool around on Himfjäll so I guess thats the next step.
Lvled my farmlands Rival to 2 now and then went over to Himfjäll again, died to a harvester without spawning a Rival but then killing it somehow spawned a Rival. Not sure how many hours I have been trying to spawn one but… oh well 
Managed to lvl the Himfjäll Rival to 4 and take it down without crashing. This is the longest I have played on this savefile without crashing now since mid December.
Dare I say the performance, atleast for my system, is back to pre-Holiday event good times now. =)
HAHAh! I reloaded the game and went for another run on Himfjäll. Crashed after first kill…
I give up, cya after next patch
Do note that even when you have region level 20 and region score 9611, any rival you have in that region still gains XP as usual, until it’s lvl4.
Tried again today after the win10 security update. No change. I killed a few tanks and lvled one Rival from 2 to 3 in Farmlands and crashed right after.