They will remember the atrocity that you’ve committed, though. They aren’t called the “Immortal Syndicate” for giggles, though, because they can actually revive dead members! Executing one will see them revived later on, albeit more powerful due to their leaders promoting them (they died for a cause, after all).
You’ll need to catch up and eliminate the mobs surrounding it. Transportation – Syndicate cronies are traversing a map while guarding a convoy.
Fortification – Members are hiding in a defensible position such as a small fort, often surrounded by turrets and barricades.What you’ll know, however, is that this hydra has various members belonging to specific branches: Everyone has their own rank and position within the organization. Most of their members and locations are hidden at first, including their main headquarters. The Immortal Syndicate panel where you can see the various relationships and branches.