I've run several different colonies with RimWar as I've heard great things about the mod but keep running into a few issues.
1. I will often get a 'raid' when it is from a friendly colony who just show up, don't trade, and run around my base often breaking walls to enter but never actually fighting.
2. Friendly colonies will suddenly start sieging me, build mortars / sandbags, but then just loiter on the map after having dropped off a bunch of goods for me.
(The first issue happens often but Igor Invader mod might have made them worse)
Are there ways to fix this? Is it possible I have it loaded in the wrong order?