As most are probably aware, Team Fortress 2 has a ton of achievements, most of which are seemingly unrelated to each other. But I've been curious about this for a long time.
If I was a new player, what is one action I could perform that would net the most amount of achievements instantly?
For example, I came up with that if I was a spy, disguised as a medic, who killed that medic (who was healing me) with a backstab while he had an Ubercharge ready and also got Revenge on him at the same time, I would get the Achievements "Dr. Nooooo", "FYI I am a Spy", "Come in from the Cold", "Identity Theft", and "Insurance Fraud", all at the same time. Is there anything else more advanced than this?