For the record allow me to clear up the argument since the video really doesn't show well what actually happened. After almost 30 minutes without a kill I called for a charge on the North side of the map through the cloud cover. This was only in part due to the teabags relative position.
Squash and I moved from the South to the North and then along the wall. We had already covered almost half the map by the time we reestablished visual contact; and though the video doesn't show this at all, Chango actually continued to snipe initiallly when I emerged out of the clouds, and it's my contention he didn't think at first I was going to keep advancing. He almost didn't finish his turn in time.
I did just rewatch the video though, and from qwerty's angle, Chango does advance. He does this though while we're still unspotted and if you watch closely he clearly still assumes we're at range since he turns his broadside.
If my word isn't enough, just look at where on the map we were sniping from and where on the map the first kill took place.