I've kind of fallen off from STW. Played it fairly regularly for almost a year but then I hit Twine Peaks and the rewards are just such shit (unless there's one of those "4x evolution material" missions going on and even then that lasts you for all of 5 seconds of evolving) & the amount of work you have to do get through those missions when you don't have a reliable team playing with you where everyone does their part, it just becomes too much grind for very little reward & progress. I went on a trip for 1,5 weeks in the beginning of August and just haven't really gotten back into STW after that. I've logged in everytime I go play Battle Royale to get the daily rewards & go use my accumulated Research Points (Offense & Tech are Max LVL, Health & Shield are around lvl 70-80).
Doesn't help that there's no story tied to the region so it's just an über-grind all the way through. More of the frustrating kind than challenging & fun one. Also doesn't help that all the half-decent rewards are tied to the harder "4 players recommended" storm missions where even a single absent/crappy no-good player can ruin it for everyone at Twine Peaks' level, unless you've wasted thousands of materials & crafiting shit to make such unpenetrable defenses that you can do it with fewer than 4 players (or have good luck with the location of the thing that needs protecting). After which you have to spend the next 10 missions to get your material supplies anywhere near to what they were before.
This newest seasonal story thing is also very unappealing, so that has probably played into my apathy towards returning to STW, especially since the first game I tried of the limited time event bugged out and we couldn't advance after a certain point because some satellite part or whatever didn't spawn and we got stuck. Yay for buggy mission shit that STW is riddled with.