Hidden and dangerous achievement in Sniper Elite 3 (Xbox 360)

How to unlock the Hidden and dangerous achievement in Sniper Elite 3 (Xbox 360): Complete a campaign mission without being seen (excluding Tobruk)

Sniper Elite 3 - Hidden and Dangerous Trophy / Achievement - Complete a Mission Without Being Seen

Achievements, Collectibles - Mission 8 - Sniper Elite III: Afrika Game Guide

Hidden and dangerous achievement in Sniper Elite 3 (Xbox 360)

Sniper Elite 3 Achievements Guide - Video Games Blogger

Steam Community :: Guide :: Sniper Elite 3 - All Collectible Locations

Sniper Elite 3 Achievements

Sniper Elite 3 - Hidden and dangerous Trophy / Achievement Guide

Sniper Elite 3 - Hidden and dangerous Trophy / Achievement Guide

True sniper achievement in Sniper Elite 3

Sniper Elite 3 (Xbox 360) Achievements