ORIGINAL: LimeyBugger
Specifically, it seems you need to accomplish a few things to get on the Butsi side.
1. Talk to the NPC in house by the railway station, who asks for fares to be lowered.
2. Talk to the station boss, and get them lowered
3. Return to the NPC from #1, and he sends you to the Butsi village
4. Go to the village, talk to the chief. He tells you to rescue Shammy
5. Go to the southern base - talk to Shammy in the cell (last on right in the prison).
6. Return to the Butsi chief - now you can recruit Butsi warriors - though previously hired mercenaries become hostile.
Done all these, the U.N. plot never seemed to open up at all. I ended up just killing the dictator and became the president of Diamond Coast.
So does anybody ever played the U.N. plot at all?