As far as I know there's bhopping and you can gain a bit of speed while bhopping but your knees bend while jumping so it's not as fluent as 1.6 as far as I can tell.
You're not used to it and it looks like that because your knees bend, though I've seen people bhop in CS:GO and you can gain a bit of speed but as I said it isn't as fluent as 1.6.
Weird. Well I once got a feeling that I'm bhoping but it was just one jump, nothing more. Never seen in in 3rd person though, so I can't be sure. I'm also interested in the ducking. How does it looks and so on.