Right now the only way to actually access a cool part of the game is really only via luck and that's incredibly lame
Pinpointers and all.
So instead I suggest a idea
Instead of pinpointers being RNG hell
There is an intermediate dungeon
Which is always permanent and refreshes every 1 hour offering two or more different paths.
Leading from intermediate-intermediary-end game dungeon The first one being where the split begins.
POSSIBLE THEMES
Syndicate
Remnants
NT remnants(possibly some sort of mercenary theme in which you're racing against other mercenaries which are AI)
Biohazard
ISSUES
I do sorely admit this does have issues with one of them being the lack of lore for the intermediate dungeons and the rather volatile state of lore
And the large amount of manpower that would be needed for well...
Multiple splitting paths for dungeons
But as long as we tried to keep the dungeons somewhat reasonably small it might be possible to have varied paths for intriguing point A to B gameplay