隔墙有耳

thumb|right|300px|Eyes for Ears map Eyes for Ears is a Prologue: Bound by Blood achievement. Your mission, should you choose to accept it, is to locate 16 listening devices scattered throughout the camp. With the achievement active, the listening devices become more visible and emit a sinister chirping sound (affected by Environmental Volume). Double-click on the Listening Device Sweeper to activate the special marking skill and use it on each listening device. thumb|Active listening device thumb|Inactive listening device

Listening devices are extremely noisy before being marked. Listening to the game's sound effects with headphones may help with locating them. Category:Achievements de:Augen für Ohren es:Al tanto de todo

1. Meet with your initial contact to start the collection.

2. "Listen in where he keeps watch."

3. "Tune in for a tune up."

4. "Sometimes it's okay to have things confiscated..."

5. "Keep surveillance of her under the table."

6. "I'll never miss a song again."

7. "He seems nice, but can we really trust him?"