In Sniper Elite: Resistance, players need to destroy 21 Dead-eye Targets, also known as Stone Eagles, to unlock the "Spread Your Wings" achievement/trophy. Each mission (except Mission 1 and Mission 9) contains three Stone Eagles, often placed in hard-to-reach or distant locations that require a keen eye and precision shooting. This guide will help you locate and destroy all Stone Eagles in the game.

Mission 2 - Dead Drop

All three Stone Eagles in this mission can be found from a single vantage point:

1. Follow the road from the starting point until you reach a bridge.
2. Take the path on the left downward and look for a Propaganda Poster as a landmark.
3. Use the ladder (via locked gate) or climb vines to reach a high vantage point.
4. From this spot, you can snipe all three Stone Eagles with ease.

Mission 3 - Sonderzüge Sabotage

1. Head to the train tracks on the east side of the map, then move south.
2. Use the metal stairs to gain elevation and mark the targets.
3. One Stone Eagle is near the mission’s starting location.
4. The second is next to a Nazi banner on a square-shaped building.
5. The third is on a tower to the right of the second eagle.

Mission 4 - Collision Course

1. Zipline down from the starting location.
2. Move up the path to the ridge overlooking the crumbling towers.
3. One eagle is on a crumbling tower, another is on the dam.
4. The final eagle is near the lumberyard to the north.

Mission 5 - Devil’s Cauldron

1. The first Stone Eagle is on top of the lighthouse.
2. The second is on a large metal crane with a sniper on it.
3. The third is on the top-right side of the train tunnel in the north.

Mission 6 - Assault on Fort Rouge

1. All three Stone Eagles can be marked at the start of the mission.
2. Use binoculars to locate them, then switch to your rifle for precise shots.
3. A challenge option is to attempt hitting them with a pistol (6x zoom helps).

Mission 7 - Lock, Stock, and Barrels

1. The first Stone Eagle is at the top of the main building.
2. The second is at the top of a windmill with an enemy sniper.
3. The third is on a chimney near the enemy tank in the final area.

Mission 8 - End of the Line

1. The first Stone Eagle is behind a chimney west of the starting location.
2. The second is in front of a searchlight.
3. The third is positioned between the first two and blends into the background.

Tips for Finding and Shooting Stone Eagles

• Use binoculars to mark the eagles before shooting.
• Look for shiny reflections, especially in darker missions.
• Adjust brightness settings if visibility is low.
• Sniper rifles with higher zoom levels make it easier to take the shot.
• If struggling, use photo mode (if available) to scan the environment.

By following this guide, you’ll be able to destroy all Stone Eagles and unlock the "Spread Your Wings" achievement/trophy in Sniper Elite: Resistance.