Call of Duty: Black Ops II - Xbox 360 Strike Force Levels: New to the Call of Duty Franchise, strike force levels provide sandbox-style gameplay experiences, allowing players to take command of any element of their squad at any time. Branching Storylines: Choices the player makes could mean the difference between life and death for some characters and there exists an even greater opportunity for multiple endings. Single Player Character Customization: Choose from a variety of weapons and loadouts providing multiple choices for how you approach single player missions.