人类最黑暗的时刻到了，他们正面临一场前所未有的大屠杀，你身为地球联盟部队的一员，必需要保卫自己的家园！游戏中有4个不同的角色选择，每个角色都有自己的特长和能力，还可以在商店中购买和升级装备。

Features: 

• Mesmerizing visual effects and graphics
• RPG Elements including Customizable Skill Trees and Unlockable Characters and Weapons
• 4 Player Co-Op 
• 4 Unique Game Modes with 3 Difficulty Settings to choose from (Normal, Hard & Nightmare)
• 12 Unique Skills each with 5 Different Levels
• 13 Unique enemies
• 13 Specially-commissioned Gameplay Music Scores
• 24 Unique Maps
• 26 Different weapons, including 3 “Ultimate Weapons”
• 31 Unlockable Achievements 
• 182 Pages of Engaging Comics