Gears Of War 3 - Versus Booster Map Pack : Bullet Marsh Multiplayer Map Flythrough Trailer | HD 720p

Game - Gears Of War 3
Publisher - Microsoft Game Studios
Developer - Epic Games
Engine - Unreal 3.5
Platform - 360
Release Date - 20 September 2011

Source
http://www.youtube.com/user/GOWSeriesVideos

Soulcalibur V - How To Play : Evade With Quick Moves | HD 720p

Game - Soulcalibur V
Publisher - Namco Bandai Games
Developer - Project Soul
Platform - 360, PS3
Release Date - TBA 2012

Source
http://www.youtube.com/user/NamcoBandaiGames

Ace Combat : Assault Horizon - Accolades Trailer | HD 720p

Game - Ace Combat : Assault Horizon
Publisher - Namco Bandai
Developer - Project Aces
Platform - 360, PS3
Release Date - 11 October 2011

Source
http://www.youtube.com/user/NamcoBandaiGames

Dead Rising 2 : Off The Record - The Killing Hour With Frank West | 480p

Game - Dead Rising 2 : Off The Record
Publisher - Capcom
Developer - Blue Castle Games
Platform - PC, 360, PS3
Release Date - 11 October 2011

Source
http://www.youtube.com/user/OfficialDeadRising

Prototype 2 - Developer Diary 4 : New York Zero Trailer | HD 720p

Game - Prototype 2
Publisher - Activision
Developer - Radical Entertainment
Platform - PC, 360, PS3
Release Date - 24 April 2012

Source
http://www.youtube.com/user/prototype