Complete the following achievements to unlock Xbox Live Gamerscore points.
Achievement | How to unlock
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- 100 Times Too Many (5 points)
| - Killed by the Alien 100 times.
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| - Caused the Alien to retreat by using the flamethrower.
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- Mind Your Step (20 points)
| - Navigated Reactor Maintenance without dying.
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- Not the First (10 points)
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- Retreat From Fire (20 points)
| - Caused the Alien to retreat using a molotov.
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| - Knocked down a human or stunned an android with a non-lethal attack.
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