What sets Sniper Elite: Resistance apart are the diverse types of Kill Challenges, each offering a novel and stealth-centric approach to dealing with a high profile target. In Mission 7 “Lock, Stock and Barrels”, players need to kill Aldo Riese using poison. This guide will explain this challenge’s completion steps without being detected.

Best Starting Location for Aldo Riese Kill Challenge

To ensure a smooth and stealthy approach, start the mission at the Windmill Starting Location. This location provides the best route to Aldo Riese while minimizing the chances of detection. However, you must first eliminate two snipers who have a clear line of sight over the area.

Eliminating the Snipers

1. First Sniper – Located upstairs in the Windmill. Quietly take him out using melee or a suppressed shot.
2. Second Sniper – Positioned to the east. You can eliminate him from the same sniper’s nest inside the Windmill.

With these threats neutralized, you can now move towards your objective undetected.

Where to Find the Poison in Mission 7

The poison required for this kill is located inside a barn to the east of your starting location. Follow these steps to acquire it:

1. Head to the Derelict Barn – Move cautiously, as two guards patrol the area.
2. Eliminate the Guards – Use stealth melee takedowns or suppressed shots.
3. Find the Poison – Inside the barn, look for a table near the left side of the door frame. The poison will be on top.
4. Plan Your Escape – Avoid enemy patrols by scaling the nearby wall using vines to exit the barn area safely.

How to Kill Aldo Riese Using Poison

Now that you have the poison, it’s time to set up the assassination.

1. Infiltrate the House – Head south toward the house where Aldo Riese resides. Stay crouched and avoid detection.
2. Eliminate Any Guards – If necessary, silently take out guards patrolling near the house.
3. Locate the Glass of Water – Inside the house, on a table near the center of the room, you will find a drink that Aldo Riese will consume.
4. Poison the Water – Interact with the glass to add the poison.
5. Trigger the Kill – Ring the dinner bell on the nearby table to lure Aldo Riese to drink the poisoned water.
6. Hide and Wait – Exit through the opposite door and take cover in a nearby room. Within moments, Aldo Riese will drink the poisoned water and collapse, confirming the successful kill.

With this method, players are able to perform the Aldo Riese Kill Challenge without ever being spotted, completing the challenge purely stealthily, as there will be no alarms raised. When following this approach, you will be able to take out the target without being spotted, which is very gratifying, while it is also very efficient.