- S2 Black 0ut
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- Exalted Mythic Member
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Start a new game. Do not kill any Engineers while playing as the Rookie. Don't even shoot at them. Engineers that self destruct after you kill the surrounding Covies won't count against you. Engineers killed during the flashbacks won't count against you.
You'll get the achievement when you get to Data Hive.
[Edited on 02.05.2010 6:45 PM PST]