I just saw this for the first time today, we were playing gridlock and a guy named BlackJak on the other team was somehow picking up weapons without actually "stopping" to pick them up. He would roadie run to them, then do the "picking item up" animation while sliding across the map, and then instantly be back to roadie running again. It really threw us for a loop since we were all lining up our shots at the nades to start pounding him when he stopped, and he never did. Just ice skated through grabbing the nades in the process.
This was something completely different than the permanent roadie run glitch, he moved at normal speed otherwise. It was strange....anyone else came across this?