GameTrailers writes: The developers expressed a desire to focus on challenging gameplay, with a smart spawn system that sounded something like the director in the Left 4 Dead series, reacting to player skill and decisions and smartly placing enemies within the level to create a dynamic difficulty. Gameplay will also be impacted as players "declassify" military info. Essentially, your first run through the campaign won't give you the whole story. To uncover the truth, you'll essentially replay sections of the campaign with modified challenges. Maybe you'll discover that the Gears were only armed with pistols due to an equipment shortage, or that hammer of dawn strikes were occurring throughout the area, complicating your combat situation.