Re: Skirmish ini problem .
Welcome to the forums!
But, you made quite a few mistakes.
missions.rte/index.ini/includefile = skirmishactivities.iniincludefile = missions.rte/skirmishactivities.ini
The filepath may not be entirely accurate, I am not sure where it actually is.
Sometimes searching the forums isn't the only thing you should do.
You could have checked any of the ini's for this information.
The Wiki also has useful information. Make sure to search that as well.