@KevinFischer - I think that you're correct. That's what I ended up doing after trying all I could think of.

@KevinFischer - that's not possible: 1. Exiting mission also exits Campaign. You can go back to campaign, but that throws you back into mission. 2. Mission Select - there explicitly states it will not change the gameplay in campaign. Unless taking option on rewind to that mission, losing all progress since then.

This lines up with my own observations. However may I propose a small change? I believe that the relic is granted, but due to lack of slot it will go into >/dev/null. askubuntu.com/questions/12098/… Might be important if there's a hard limit of relics in the game. But the end result is the same, I agree, as well as with the notion that Martyr promotion and City-State ability are essentially the same for our purposes here.