I miss the insane adrenaline rush when getting into small fights (1v1, 1v2, etc.). You go so long doing doing whatever it is you're doing- PvE, hacking data sites, transporting stuff- it's all a bit mundane.

But nothing raised my heart rate like getting into a fight. 30 seconds of terror. I would have to take a break after these, win or lose, until my HR returned to normal and my hands stopped shaking.

I've never experienced that in any other game.