Aren´t 10-15 parties a lot for one hideout? I thought it would be something around 5 parties each hideout?
At least I would prefer 5 parties with 20+ bandits instead of 10-15 parties with <10 troops as it seems to be right now?
EDIT:
In the early game a lot of small <10 bandit parties are fine, but after the mid game they get annoying and fewer parties with larger numbers are better, in my opinion. But of course we need to see the big picture, I´m not sure at all how they affect all the caravans and stuff. Just my 2 cents.
By time pass and player level up average bandit party size increases, it starts with 10 and at end game it is around 30 i think. But it seems this increase is slow. Maybe it should differ more. I will check again.
About number it can be 8-10 instead of 10-15. I need to check again. I think it is ok, 5 can be less. Here in weird samples probably there are too much infested hideouts around but need to check save files. These hideouts are cleared by player and also npc lords. Need to chekc why they are not cleared somehow.