(Don't worry, I won't forget about the other RPs. Probably.) [A strange envelope has been shoved under your door. You open it, and read it] "Dear [INSERT MERCENARY HERE], Are you interested in finding a rare treasure dating all the way back to 1972?! No? Too late, the agents are on their way. Keep reading. You're known for your cunning, your brutality, your speed, and your ability to have a minimal number of people question your sudden disappearance. And the fact that the Spy (or any other of the last mercenaries we had) is probably your father. Unless they aren't. Speaking of the last guys we had, we need you to find them. They're the keys to the treasure. Of course, you'll have to revisit their old battlefields and fight against other mercenaries to find clues as to where they are. As you read this sentence, our agents have just arrived at your home/mother's basement/secret bunker. Welcome to Reliable Excavation Demolition. Love, Miss Pauling" Something, something, TF2 RP set 25 years after TF2.
So it's set in 1997. Is Australium technology going to play a part in this? As of the last comic, the entire world's supply of Australium was sort of... gone.
Yes. Maybe. I was actually going to address stuff like that in the sheets page. Long story short, Sniper's okay now, Australium is pretty much gone, Miss Pauling's a lesbian, TF2 mercs killed the living out of the TFC mercs, etc.. It's basically a time travel pocket dimension thing, where whatever was last confirmed as of the Gun Mettle update is canon, but with stuff made up so nothing happened until now.