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beats quake like Waco

In reference to the id Software release "Quake" (1996); the line implies that the person in question has the aptitude greater than or equal to that of the Waco Kid's (Billy the Kid) firing abilities, in that they can quickly approach, defeat, and move on.
yetijones
Most likely saying that his beats shake like waco, since Waco, TX has the Balcones Fault to it's North. It may also be a double entendre, referring also to the Waco incident linking it to Quake the videogame.
Iggins
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