Wasn't full, but it was 20+ vs 20+ on
TG's CQ server. I actually counted 28 "mississippi"s but I added 2 seconds because I felt I was counting slow. And I was the CO of the round, so I knew the exact moment that the first and last pulse went out, since I through the UAV out there with the intent of determining duration (was a Camp Gib stand off between Central and Ruins, I had nothing else to do =\ ).
Unfortunately, shooting down the UAV would give an amazingly awesome tactical advantage, but only if you can take it down within 10 seconds (ie, via gunship, or AA Rorsche if you're already looking for it), or if they extend UAV's duration to 45-60 seconds.
Looking at the non-NS maps in which you would (logically) be able to pack a SAAW, you got Suez, Sidi, Shuhia, Wake, Minsk, Verdun, and Tampa. Out of those, the only maps in which an enemy UAV is enough of a tactical disadvantage that you'd want to go out of your way to destroy it would be Suez, Sidi, Shuhia, and Minsk. Wake is too small for the enemy to need UAV to predict enemy movement, Verdun and Tampa are too big for UAV to give any kind of serious tactical advantage.
For the remaining 4, Minsk and Suez have no transports, and if you're packing a SAAW solely for anti-gunship use, you might as well just pack default rockets and point at the gunship, they still get the beep and you'll rarely hit them with SAAW shots anyways so it's just as useful, plus you got an AV rocket in case of an emergency. Which leaves Shuhia and Sidi. Two maps in which you could potentially be able to give your team those 7 seconds of secrecy...
I hate to be the one to shoot down a brilliant idea, if I remember correctly, it was Arithea who initially mentioned it a few months ago in a discussion of new tactics for Fall of Berlin, I have to give her credit for thinking that far outside the box, I never would've thought of it. Theoretically, it's an ingenious tactic, but it is unfortunately, impractical, and does not give enough of a reason to pack a SAAW over Default/Pilum. =(