Details on all playable characters, including abilities and skills that are unique to your character and your play style. Compete by yourself or with friends in the co-op campaign. Exclusive detailed maps featuring locations of dog tags, voice recordings, and other hidden items. Tactics for fighting alien and human foes, including expert strategies for defeating the bosses. A complete list of Achievements and Trophies, along with tips on how and when to accomplish them. Signature Series treatment, with premium cover, extra art and bonus content, makes this a collectible item for any fan!