Sorry I'm late...
Most of my hopes and dreams have been posted by you guys, but I'll point them out anyhoo.
Sidearms. I want me a nice M1911 as well as any other kits I have, such as M16+203 or M4+Charges, whatever. It disgusted me that you couldn't have a sidearm with you as standard.
Obviously the smarter AI blah de blah, but to that comment about them not firing grenades... They do! Or did you mean throwing grenades. Maybe you actually wrote that. I don't remember. Anyway.
The ability to traverse a two foot rise in the ground. Isn't it just so annoying when you have to go all the way around the edge of a short drop, which usually leads you into the open?
Also, someone said something about the enemy AI spotting you in grass. I haven't found this to be true, in fact I once hid in a patch of grass and had a guy walk right up and actually bump into me before he spotted me.
Some actual chopper stuff would be nice. I know this has all been done in mods, etc, but riding in a Blackhawk can be so easily accomplished with Igor that I wonder why Rs didn't do it themselves rather than make me do it.
They really need to either stay away from urban maps, or really improve their skills. The Embassy map, although admittedly home to one of my favourite missions, is boxy as hell.
Although I myself am a veteran of Rainbow Six, probably like most of you, I wouldn't mind seeing an actual gun model. Instead of just the whole screen zooming in, howabout getting some kind of Operation Flashpoint or DF: Black Hawk Down action in there are letting us use the iron/optical sights of the weapon to line up a shot? Greater realism, no?
As for jamming, that would really annoy you, you must admit. How many times have you seen an enemy a little too late and only just managed to drop to a knee and then drop him? If your weapon jammed, not only would it annoy the hell out of you, but you'd be annoying other players (if on MP) with shouts of "JAM KILL! JAM KILL!". A new phrase coined all for the sake of an annoying little touch of realism.
I'd like an IGB too. Right now I can only play with a handful of others (whom I actually coaxed into buying the game), so it would be nice to drop into random servers without using Ubi or Gamespy (kill, kill, kill).
There are hundreds of little realism touches I could name, such as rainatwer dripping off your buddies' hats/helmets, but I could live without them as long as they polish the game up real good with a shiny new engine and have all my wants down to a T.
Dang, great Emoticons here : ).