So, It would probably be a good idea for us to get together and practice one evening before Friday. We have a mumble server we can talk on - It takes a few minutes to download and set up.
Ip: 85.236.100.59
port: 20712

I'm trusting the PCG guys to get themselves sorted, but for us non staff folk here's the line up:
Scout: tr4656
Soldier: Sneaky little penguin
Pyro: Cap'n JABBA
Demoman: Zealos
Heavy:Stevie B
Engineer: Donbar
Medic: Adam
Sniper: Swift
Spy: Coccyx