Like many have stated before, the z key I think it is, is a toggle for prone. Now, you must note that the key's function change depending what the situation is. For example, z mabye be an Infantry key, but it does not carry over the same meaning when you're in a vehical.

Well, I agree with you. I think this game is WAY to much arcadey already, adding this in, if possible, may ballance this out. As the devs said, they're going to test it and if it works, hopefully it'll be included.

Well if you noticed in my earlier post, the "Z" key is used for verticle take off. It's a player control but making it a vehicle control isn't a problem. The only problem is that players won't be able to re-map it. Controls and ideas still need to be tested so anything is subject to change. I'm almost at the point to where I can test some controls...