Left 4 Dead: Prima Official Game Guide New and Sealed

• Complete walkthroughs of No Mercy, Death Toll, Dead Air, and Blood Harvest. • Essential play tips covering movement, combat, and healing. • Exclusive maps of every level denoting the locations of ammunition piles, first aid kits, pain pills, and thrown weapons. • Detailed blueprints for Infected ambushes used for dominating the online competition. • List of all XBox 360 Achievements and tips on how to earn them.