I was thinking... assassination of a enemy leader is a very common tactic in the history of warfare. What about a Regicide Victory where you win by being the only leader standing? My ideia is that the enemy leader is represented by a "[Leadername] Guard" which is killable. Its a elite group of soldiers that can move fast and has high strength, but doesn't attack. To kill said Guard requires a direct assault or a furtive assault. For a furtive assault, I thought about a stealth unit with Hidden Nationality to be used for stealthy assassinations. Seems pretty clear, huh? Well, there's only one thing missing... and it is: What should happen with the nation after a leader is assassinated? Their nation turns into barbarians? Their cities instantly fall to dust (Civ3, not a nice idea methinks)? They get many turns of anarchy? AI gets dumber? Their nation dies? Their safety drop? Something else?