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Pulling a LegacyFall12 means you wallbang at least two different people each round of Rainbow Six Siege, usually with headshots. Ultimately making people whine, cry, and call you a hacker.
When your mediocre-at-best friend starts screaming that he pulled a legacy fall, you know he got at least two wallbang headshots that round of Rainbow Six Siege. Because LegacyFall12 is a wallbanging god.
by Toastisthemosttoast August 12, 2017
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