I agree that most gamemodes do not play that way, and the classes are more restrictive to be a pure arena shooter.

But playing soldier or scout in gamemodes like Koth and PlayerDestruction scratch that itch enough for me to count.

Fast respawn and itemspawn management, combined with good map knowledge feels like good old quake 3 or UT sometimes.

Then you have dozens of rocketjumping maps in the server browser, which no game i know of has these days.