Gotta love easter eggs. I was shooting every conceivable wall to find it, but I guess I missed that one. I thought it might be on one of the beams if you go all the way to the top to grab the RL and look down there are two beams, one of which has 3 health powerups but nope. Thanks monkapotomus; I gotta play UT/Q3 more.
Asus P9X79-Deluxe, Intel i7 3930k @ 4.2Ghz, 16gb DDR3-1600 Kingston HyperX Memory, Coolermaster Storm Trooper case, Corsair AX850 psu, Geforce 680 SLI, Corsair Model H100 w/c, Western Digital Model WD2002FAEX 2TB, Asus Blu-ray Writer 12x, Windows7 Pro x64