The Killshot Challenge

[Killshot-CC]

Lupo's challenge garnered a lot of fun, so I thought I'd try a challenge of my own. mxz has publicly accused SAS of cheating, but hasn't offered anything to back it up. If he can't, in fact, back up his libelous statements, what should he have to do? I'm thinking he should leave the game and never return, but I'm open to suggestions.