The noise of the captains machine guns slapping you in the face came to mind this evening. Dunno why, but it brought back fond memories.
Then I thought about that bunker where the mobs continuously pummelled you with rockets, and the noise of those launching and impacting is stuck in my brain.
Someone has to make a Neocron clone. I'm surprised it hasn't been done yet. And if they do it, they have to make it FPS only, no switching to 3rd like in Neocron. Huxley is the closest so far, but it sounds more like Planetside than Neocron.
This is what KK are working on atm
http://www.blackprophecy.com/ which looks like an EVE contender.