Maybe like a false flag quest to make an enemy attack

You do the quest (attack a poorly defended population center or low-priority target) and then the option to make the enemy faction attack shows up (the implication being that you frame another faction for the attack)

Potential Pros
-Attack faction that you can't attack directly (Like an ally)
-Break down relations between two factions ("Remember, no Russian")
-Make the enemy do your dirty work for you without having to stick your neck out
-Make enemies attack each other

Potential Cons
-Could come back to bite you. If done incorrectly could completely ruin diplomatic relations with other factions
-Element of time sensitivity? You only have a few days to "cash in" before they figure out who *actually* did it
-Only works if you kill every single person for the quest. If even one escapes, the quest fails and the faction comes to attack you (No Witnesses)
-Doesn't work on mechs or insects
-The entire endeavor is very dubious, morally speaking (especially when it comes to killing non-combatants)

Sorry, it's a little too complicated for me, plus, like you said,

引用自 SAUCE__GODD：

Only works if you kill every single person for the quest.

, the player still has to make colonists leave their home map to kill someone.

fair enough let me try again

*Ahem*

Mercenaries

Will go anywhere and kill anyone but expect to be paid

Assault- Basic assault but for silver instead of goodwill. Relatively large assault by default but quite expensive. Does not capture the base after destroying it. The faction attacked does not lose relations if the mercs win

and here's an amended version of the previous idea

False flag- The same as assault except you pick a faction to take the relations hit for you.

Pros
-Will kill for money and money alone (Simple but expensive arrangement)
-Their actions won't be traced back to you if they win
-Crazy idea: Maybe they could be able to be sent to attack bandit camps or be summoned for support on quests. Might still be too much.

Cons
-Professional murder does not come cheap
-Will sell you out to save their skin if they lose
-Will be very upset if you can't pay

@SAUCE__GODD I have decided to make a patch for Mercenaries For Me, however this will take some time.

@SAUCE__GODD Unfortunately I have changed my mind, after further research, I found Mercenaries For Me to be broken, however I had a lot of fun playing it back in 1.3.

Please tell me if you know any other mod that adds mercenary faction(More bugs if I try to add it myself), or you can send a friend request.

可以往空投仓里塞多个袭击召唤器，根据召唤器数量扩大袭击点数

引用自 ThumbStick：

@SAUCE__GODD Unfortunately I have changed my mind, after further research, I found Mercenaries For Me to be broken, however I had a lot of fun playing it back in 1.3.

Please tell me if you know any other mod that adds mercenary faction(More bugs if I try to add it myself), or you can send a friend request.

VFE-Pirates

But hear me out, instead of using a modded faction or adding another one what if you used the Ancients faction already in the game? A well-armed and armored faction that makes sense for the narrative

maybe have the mech retaliation be toggleable in config?