This page contains Fallout 3 Hints for Playstation 3 called "Fat Man gun" and has been posted or updated on Dec 28, 2008 by doyle138. Let us know what you think of this Hint by thumbs voting.
Fat Man gun
To get the passcode to the experimental MIRV gun, collect all of the Keller family transcripts. The Fat Man gun shoots eight mini-nukes at a time.
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