Class/Specialization tells a lot of how the player may be. Is not always 100% but you can infer the playing style roughly 90% of the time
Sweaty players
Alpha Assasin
CityHunter Analytic
Samurai Ghost
Elder Stalker
Valkyrie Fervent or Ghost
Melee Players
Viking, Samurai, Zerker
Noobs
Hunter Fervent
Ranged
Elder Stalker
Scout Analytic or Disciplined
Same goes for FT
Scout Duelist and Assault deadly are probably the sweaty ones
Recon, Isabelle, OWLF - Ranged
When you go into a match and see 4 field medics, engage, if they are any decent, just leave. Even mediocre players can take on very good preds running those classes. Is not impossible, but will be a very boring and tiresome match. Against a good or great team, even the greatest players will not be able to win. That’s why high level FT players don’t go all FM’s. They know is broken and is boring AF