In the game Aliens Vs. Predator Gold Edition over 40 nightmarish and exciting level that you have to go. The three fiercest species in the universe srazhayutsya against each other for survival.

Hold on tight, hardened Space Marine commanders. Get ready, strategists future wars. You waiting for a new battle, the likes of which has not happened. This war will change your idea of the battles of the distant future. Lead countless armada of one of three unique factions and crush the enemy - in the most global and far-reaching strategy for the last time! Released: 2010

Game Notes
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Set in the shattered subway of a post apocalyptic Moscow, Metro 2033 is a
story of intensive underground survival where the fate of mankind rests in
your hands. In 2013 the world was devastated by an apocalyptic event,
annihilating almost all mankind and turning the earth's surface into a
poisonous wasteland. A handful of survivors took refuge in the depths of the
Moscow underground, and human civilization entered a new Dark Age. The year
is 2033. An entire generation has been born and raised underground, and their
besieged Metro Station-Cities struggle for survival, with each other, and the
mutant horrors that await outside. You are Artyom, born in the last days
before the fire, but raised Underground. Having never ventured beyond your
Metro Station-City limits, one fateful event sparks a desperate mission to
the heart of the Metro system, to warn the remnants of mankind of a terrible
impending threat. Your journey takes you from the forgotten catacombs beneath
the subway to the desolate wastelands above, where your actions will determine
the fate of mankind.

Publisher: Sega Developer: Rebellion Genre: Sci-Fi First-Person Shooter Release Date: Feb 16, 2010 (more) ESRB: MATURE ESRB Descriptors: Blood and Gore, Intense Violence, Strong Language, Suggestive Themes