Duplicate Ming mission "End the Sengoku Jidai" is bugged in 3 different ways

[Domi2612]

Integrity​

I have verified my game files (on Steam)​

Yes

I have disabled all mods​

Yes

Required​

Summary​

Ming mission "End the Sengoku Jidai" is bugged in 3 different ways

Description​

I'm pretty sure these bugs have been reported separately before but maybe reporting all of them together will finally get this mission fixed because right now there is only one path that is worth taking because the other rewards are either unobtainable or simply don't do anything for you.

Bug 1: Wrong Event Recipient or "How To Subjugate Yourself"​

If you go the diplomatic route and befriend the owner of Kyoto (getting to 170 opinion and 75 trust) they should - according to the tooltip - get the event Diplomacy with the Emperor of China (flavor_mng.39), this is scripted correctly in the custom tooltip:

custom_tooltip = mng_diplomatic_reward_japan_tt
tooltip = {
	1020 = { 
		if = {
			limit = { 
				NOT = { owned_by = ROOT }
			}
			owner = { 
				country_event = { id = flavor_mng.39 }
			}
			custom_tooltip = mng_insight_39_tt
		}
		else = {
			root = {
				add_country_modifier = {
					name = mng_sinicization_of_japan_modifier
					duration = -1 
				}
			}
		}
	}
}

but incorrect in the actual hidden_effect block (at the very end, need to scroll down a bit):

hidden_effect = { 
	if = {
		limit = {
			num_of_provinces_owned_or_owned_by_non_sovereign_subjects_with = {	
				region = japan_region 
				value = 10 
			}
			1020 = { country_or_non_sovereign_subject_holds = ROOT } 
		}
		1020 = { 
			if = { 
				limit = { 
					owner = { 
						NOT = { is_subject_of = ROOT }
					}
					has_dlc = "Mandate of Heaven" 
				}
				owner = { 
					reverse_add_casus_belli = {
						target = MNG
						type = cb_force_tributary_mission
						months = 120
					}
				}
			}
			else_if = {
				limit = { 
					owner = { 
						NOT = { is_subject_of = ROOT }
					}
					NOT = { has_dlc = "Mandate of Heaven" }
				}
				owner = { 
					reverse_add_casus_belli = {
						target = MNG
						type = cb_vassalize_mission
						months = 120
					}
				}
			}
		}
		add_country_modifier = {
			name = mng_eastern_campaigns_modifier
			duration = 7300 
		}
		if = { 
			limit = { has_dlc = "Leviathan" }
			1020 = { 
				add_great_project_tier = { 
					type = imperial_city_kyoto
					tier = 1 
				}
			}
		}
		else = { 
			1020 = { 
				add_base_manpower = 3 
				add_base_tax = 3 
				add_base_production = 3 
			}
		}
	}
	else = {
		if = {
			limit = {
				NOT = { owns = 1020 }
			}
			country_event = { id = flavor_mng.39 }
		}
		else = {
			add_country_modifier = {
				name = mng_sinicization_of_japan_modifier
				duration = -1 
			}
		}
	}
}

note how country_event = { id = flavor_mng.39 } lacks a scope and just fires the event for your country so you get this event telling you about your relationship with yourself, how you demand to subjugate yourself and when you decline your offer you get a tributary cb on yourself.

Proposed fix: Add a scope so the owner of Kyoto gets the event instead.

Bug 2: The Confusing One or "Self-Subjugation 2: Electric Boogaloo"​

Now on to the military path of this mission, here you are required to own 10 provinces in the Japan region as well as Kyoto itself. This is the reward the tooltip promises you before stepping foot into Japan. Attentive observers may have noticed that it gives you a force tributary cb on a specific country, now you might wonder what determines who that country is?

It's the owner of Kyoto. Yes, the province you need to conquer to get to this reward in the first place.

Thankfully the original author thought of this and added a check in the tooltip, so as soon as you own Kyoto the tooltip updates to this and it no longer mentions the force tributary cb at all. Oh and you get plus one level on the Imperial City of Kyoto which isn't mentioned anywhere before you actually conquer Kyoto so it's a bit of a surprise, but a welcome one.
But once again, like bug #1, the actual effect is different from what the custom tooltip promises:

hidden_effect = { 
	if = {
		limit = {
			num_of_provinces_owned_or_owned_by_non_sovereign_subjects_with = {	
				region = japan_region 
				value = 10 
			}
			1020 = { country_or_non_sovereign_subject_holds = ROOT } 
		}
		1020 = { 
			if = { 
				limit = { 
					owner = { 
						NOT = { is_subject_of = ROOT }
					}
					has_dlc = "Mandate of Heaven" 
				}
				owner = { 
					reverse_add_casus_belli = {
						target = MNG
						type = cb_force_tributary_mission
						months = 120
					}
				}
			}
			else_if = {
				limit = { 
					owner = { 
						NOT = { is_subject_of = ROOT }
					}
					NOT = { has_dlc = "Mandate of Heaven" }
				}
				owner = { 
					reverse_add_casus_belli = {
						target = MNG
						type = cb_vassalize_mission
						months = 120
					}
				}
			}
		}
		add_country_modifier = {
			name = mng_eastern_campaigns_modifier
			duration = 7300 
		}
		if = { 
			limit = { has_dlc = "Leviathan" }
			1020 = { 
				add_great_project_tier = { 
					type = imperial_city_kyoto
					tier = 1 
				}
			}
		}
		else = { 
			1020 = { 
				add_base_manpower = 3 
				add_base_tax = 3 
				add_base_production = 3 
			}
		}
	}
	else = {
		if = {
			limit = {
				NOT = { owns = 1020 }
			}
			country_event = { id = flavor_mng.39 }
		}
		else = {
			add_country_modifier = {
				name = mng_sinicization_of_japan_modifier
				duration = -1 
			}
		}
	}
}

This ends up giving you another tributary/subjugation cb on yourself, but via the conquest path instead of subjugation yourself diplomatically as seen in bug #1. This doesn't end up doing anything, but it's still a bit weird that it's there since you either have to own Kyoto yourself earning you another self-subjugation cb or having a subject own it which is thankfully checked because getting a cb on your subject would be silly.
On another note, even if this was somehow changed to give you a tributary cb on some poor japanese nation, the most likely scenario is that you complete this mission as the Emperor of China which automatically gives you a permanent force tributary cb on all countries you have a land border with, which should be most if not all countries in Japan considering that you have to conquer 10 provinces there.

Proposed fix: Just remove the entire part about the force tributary cb and always show the free great project level as part of the conquest reward.

Bug 3: The Unobtainable One​

Back to the diplomatic paths alternative reward which gives the permanent mng_sinicization_of_japan_modifier country modifier (-25% Culture Conversion Cost). This reward is displayed only if you own Kyoto directly which not only doesn't seem very diplomatic to me but also has the issue that you can't reach it since you would need to complete the mission diplomatically which - as described in bug #1 - requires you to improve relations/trust with the owner of Kyoto and that isn't possible to do if you are the owner of Kyoto yourself.
The only way you could reach this reward is if you could complete the mission while owning Kyoto but less than 10 provinces in the Japan region so you don't get into the conquest branch of the reward, but as soon as you own Kyoto directly you're locked out of the diplomatic trigger and can ownly complete the mission via the conquest trigger.

Proposed fix: I think this may have been intended as the reward for subjugating the owner of Kyoto and then improving relations/trust with your subject to complete the mission diplomatically, because currently the reward for doing this is the same as bug #1, you get the event that wants you to subjugate yourself. Even if bug #1 was fixed this would then give your subject the event to get subjugated (again?), so that scenario would need another reward which most likely was intended to be this modifier.

TL;DR:​

Mission doesn't do anything useful if you complete it diplomatically and the conquest path gives you a useless cb on yourself that you would've gotten either way on all bordering countries, a temporary modifier and a great project level with a very confusing tooltip.
The best thing about this mission is that you can actually complete it and it doesn't block you entirely from getting to other parts of your mission tree.

Steps to reproduce​

Start as Ming, use console to complete the mission in different ways, note bugs described above

Game Version​

EU4 v1.36.1.0 Byzantium (fab8)

OS​

Windows

Additional​

Bug Type​

• Other

Attachments​

Screenshot​

 

[Qloc_Ice_Fog]

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