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-A detailed story-

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This section begins by 200 In the events of the previous sections so that is happening on the planet Tau Volantis covered with snow on a military base called SCAF, which seeks to return the manuscript called UFO , So he went two to restore this body are Tim Kaufman and Sam Ackerman and this manuscript dating back to Dr. Earl Serrano , On the way are attacked by monsters Necromorphs but die Ackerman in an avalanche and remains the other soldier Kaufman alone in this journey until it reaches the manuscript and get it and go back to the room to find that everyone has been executed and finds captain Mahad which kill gun suddenly and scans the manuscript and then .
 

Then move the game after 200 In a moment of the series so we find that Isaac Clarke live in secret on a lunar colony two months since the events of Part II, which destroyed the sign and fled with Ellie Langford, who I love and have been separated for this period , But place is revealed by Capt. Robert Norton and Corporal John Carver and who need help in finding his beloved Ellie and her team that was attacked by soldiers Unitologist , The church were dropped by the leader Jacob Danik soldiers Unitologist and which activates the mark aboard the colony , Making three rushing in the search for the girl and her team and fleeing in a space shuttle.
 

The Colonel Norton trackers send give him a ride to a colony on the planet Tau Volantis frozen and devastating 200 And full of monsters Necromorph , But because of the presence of mines in the space on the borders of the planet is destroyed the shuttle and inseparable team and disperses , But looking Isaac sweetheart on the frozen planet , To Ajdo Gen. Mahad may follow them and that Colonel Norton traitor because of the war romantic Elie but Atr Isaac to kill him in self-defense , The Isaac then assisted Eli re manuscript and body configuration space object named Rosetta even discover that the planet Tau Volantis is the house brand and that there is a machine based off the mark.
 

It here decides Isaac and team descending the bottom of the planet to rebuild this machine on and off the mark , But interfere Gen. Mahad and his troops and getting the manuscript and trying to kill the team, but Isaac and John escapes and leaves behind his beloved Eli, who are believed to be dead , The Isaac and John the followers of Gen. re manuscript, which is the key to stop the mark , After attempts Monday can re manuscript and orientation to the machine to turn off the mark, but discovers that his beloved Eli alive and in possession of Gen. Mahad, which forced him to give him the manuscript until the barrier opens the mark , Here it is shown very giant monster and Isaac, and John confront and evade Eli even Isaac killing monsters and death in space after switching off the mark.