The screenshots for Operative caught my eye immediately. I love the spy tech theme!
I jumped in and ran around a bit (no one was on at the time). Here is some feedback.
The footpads don't come out quick enough for the spy. Unless you walk slowly, you don't even get to see them appear. That is by no means a deal breaker. Just an observation.
I agree with the other posters who mentioned that the sounds weren't quite. I would like a deeper swoosh sound especially for the doors, too. The sound in the tunnels is spot on, however.
The silicon chip textures in the bases, along with the electric "lightening" is very COOL!
I cannot wait to get my pyro on in those tunnels. I will be using them even if the enemy isn't there. lol I was a little disappointed that they aren't as prominent and visible as I thought they might be. I don't think I will get to see as much fighting in them as I had hoped when I first saw the screenshots.
The warp tunnel exit is a little "buggy", or at least takes a little getting used to. This is especially the case if you change your viewpoint (i.e., move around) while you are being warped through. I would imagine that there will be hot spots (skirmishes and great death) at the exits and entrances of these tunnels.
I can't wait to play this with full teams! Very cool!