|Head to Jessop Conservatory, east Henbane River or the Sins of the Father story mission||400 RP|
Liberate the Cult Outpost
You’ll find Jessop Conservatory to the far east of the Henbane River, along the main road. You’ll want to begin your approach to the north by climbing the radio tower and tagging the cultists. You’ll be able to see at least seven outside patrolling along with more inside the house and two alarms. Thankfully for you, there is a great entry point from here, the zipline taking you down to the house.
Head around the side of the house up here and into the open window where you’ll find your first target with his back to you. Once he’s taken care of, creep downstairs and look out the open door to see the next cultist standing near a pickup truck. While still crouched, go left and over the small wall to get behind him and take him out, stashing the body behind the cover you approached from.
Head back towards the house but this time circle around the back where you’ll come upon another cultist with his back to you. Check to see the Marksman is not facing you and then take him out and leave his body behind the back. You can now head into the nearby greenhouse and snap the neck of this cultist before taking out the patrolling one to your right in the Bliss field and leaving the body in this nearby field.
Continue up the path, taking out the cultist leaning on the wall before hiding behind the Nitrate bags in the corner. There’s a cultist here that patrols along this route, checking in on the caged animal. Once he starts heading back, quickly sneak over and take him out before stashing the body in the nearby Bliss field along with staying crouched yourself. Wait for the next to walk by and dispatch him, leaving his body in this field too.
There should be two cultists left to you at this point and one of them patrols this greenhouse you’re at, wait for the perfect moment and pounce. This leaves you just the Marksman, approach in any way you like and take him out (a sniper can be useful) to complete the mission.