The Aelwin Augment

The mission begins with 47 locked in a prison cell within the castle's Dungeon, equipped with nothing except an ICA19 Silverballer Mk II pistol. The first objective is to retrieve the fish in the Kitchen Freezer. In order to escape your cell and reach the fish, scale the wall at the back of the cell and climb through the broken barred window. The fish is stored in a freezer unit and can only be accessed by shooting the glass in front of it.

With the fish retrieved, the second objective is to pacify Finley Henry, the head chef, with it. This is easily achieved by turning the ice machine by the barred window you used to enter the Freezer room on, then taking cover by the door and waiting for Henry to go into the room to turn the ice machine off, then meleeing or throwing the fish at him to knock him out.

The No Disguise Change complication means that you must sneak your way out of this trespassing area in order to exfiltrate. The simplest way to do this is to return to your cell and either throw the fish on the floor or shoot the ground with your silenced pistol to lure the architect outside into opening the cell door. You should then knock her out, leave the cell and go left, where there will be a guard on a tablet in the way. Knock him out and leave via the door in front of him, at which point you will have returned to the public part of the island and free to leave via the speedboat at the Pier.

The new objective is to pacify 5 civilians with the fish. Finley Henry does count as one, though, so you only really need to pacify 4 more people.

Once Henry is pacified, hide his body in the ice-box behind the ice machine, then turn the machine on again to lure in another chef and knock him out, then repeat this process to lure in a third chef and knock him out as well. After that, return to your cell and knock out the architect in the same way you did in the last level. Finally, return to the Kitchen and knock out the chef mopping in a corner on her own, but be careful that she doesn't spot you. You can exfiltrate the same way you did last time, or you can risk taking a closer exit via the East Wall, but you will need to look out for a couple of event staff in the room between the Kitchen and the East Wall, as well as three guards on said wall.

The new objective is to pacify 10 civilians with the fish instead of 5. The new complication means you must not throw the fish in order to create an audio distraction or knock someone out, so you must melee anyone you hit with it.

Apart from the aforementioned 5 civilians you pacifided in the last level, another 5 civilians that are within close proximity are the 2 in the storage room between the Kitchen and the East Wall, and the many near to a public bathroom nearby. The 2 in the storage room can be isolated from one another by throwing a commemorative token found on a shelf behind them into the corner by a box you can place bodies in. Make sure not to pacify the first member of event staff until the other is far away enough not to hear it and subsequently turn around. After that, go down the stairs near to the entrance to the Kitchen and take a left through a gate to re-enter the public part of the island, but be careful, as there is an event staff member mopping next to the door that may spot you if you aren't quick enough. There is a bathroom to the left of the corridor that contains an empty box which can be used for hiding unconscious bodies. Lure people in one at a time and hide their bodies as they accumulate and you'll achieve your last 3 pacifications, at which point you can exfiltrate.