Newly released today:

A complete walkthrough of each of the single-player campaigns.
CHARACTER COVERAGE: Detailed data on playing as the Marine, the Predator, and the Alien. Discover the advantages and disadvantages of each!
WEAPONS: In-depth stats for each character and the weapons specific to them
MULTIPLAYER STRATEGIES: Exhaustive strategies for each mode of gameplay
BOSS TACTICS: Expert tips to defeat even the toughest foe
Platform: PS3, Xbox 360, and PC