How is it impossible to integrate C? Just wait 3 darn years and annex.
Again, same with truces - wait until the truce ends.
Don't understand how are these goals impossible.
That's why I used "impossible". Why make a mission with C that you can't complete for the next 10 years when you could do it for country A and B.
The Spice mission is not impossible, just wait 10 years until you have the next tech to get increased coring range or you have finished your exploration ideas.
I feel like in such cases it's up to the player to not take missions that are "not worth it".
You have 3 missions available:
1. Conquer province X from rival A you have a 10 year truce with while you have no truce with rival B and C
2. Integrate A that you have vassalized a year ago while you could integrate vassal B and C right now
3. Rival of Rival. Get to +100 relations with country X when you are already at -100, while there are 5 other rival of rivals that are at +10 already.
Yes, it's not impossible, but it would be nice if missions would be a bit more clever. When they can give missions depending on province distance, then it should be possible to give missions depending on vassalage duration and relations or truces.
The mission rewards are strong and it is frustrating to get the right missions for the wrong target while possible targets are there.
I think the mission system needs a major overhaul:
- Mission dependencies on truce timers / relations / vassalage duration / possible to convert in the next x years etc.
- Maybe you could manually select the targeted country / province?
- Missions that give a bonus while doing them and give a penalty when you can't finish them (like the trade company missions where the want you to conquer a province. When you don't do it in x years you get a tradepower (?) penalty). You could get the +missionary strength for accepting the mission and when you can't finish it in x years you get a penalty of -1 missionary strength for y years. Or conquer province X of a rival and you get +manpower recovery and -army maintenance while the mission is active. When you can't conquer it you will get a penalty to prestige and moral.