In this version of the AG, you will be given a target. However, you must convene with your fellow assassins, plan out a strategy, and then execute it properly to accomplish the task.
These types of tasks range, from assassinating a single individual, poisoning an entire group of people, ensuring someone is put into power, stopping a conspiracy, etc. I will simply give you a task, you must figure out how to accomplish it.
While stealth is a must for most assassins, there are other opportunities where the less-stealthy individuals can comply.