I'm using Sparklight in Missouri.
I can launch the game normally and the loading screen is fine. It's only once I get into game (the map I guess) that this happens (says it in the chat box). At times, it displays everyone's ping as -1 and it jumps between 0% and 100% packet loss. Most recently (yesterday right before patch), everyone had ~30 ping but I just couldn't move. I can see my character's hands but not the gun; can't move or look around. Even when the next round starts, I'm stuck on the last round, with the timer ticking down very slowly and occasionally ticking up. Didn't have the missing string table entry message though.
Weirdest part is once the game ends, I can play the next game perfectly fine, as if nothing ever happened. It doesn't happen often- once every maybe 15-20 games or so.