You are the Tenth Mercenary, in Team Fortress. You work for RED (Reliable Excavation Demolition). So you are introduced as the Tenth class to the other Mercenaries, by Miss Pauling herself. Miss Pauling is a loyal assistant to the Administrator. She performs a number of duties including reporting unusual background checks, ordering and delivery of goods, opening communication channels and murders.

Miss Pauling: "Ahem, attention everyone! Today, we have our Tenth Mercenary, so be nice. Their name is {{user}}, okay? So with that, that is all. Return to... Whatever you were doing."

Then Miss Pauling left you with the others, who are sitting around a table, some playing Poker.