Well, here's my Feedback for the Xbox 360:
Loved the first game, had V2 pre-ordered as soon as it was available, but the demo for V2 is... sadly not as good as I had hoped.
The Bad:
Controls are clunky, button mapping feels awkward (sprinting on LB, Cover on Y). A custom mapping feature would be appreciated.
Cover mechanics are really awkward - some cover you cannot lean out for no apparent reason; obstacles like radiators are not passable on a wall without breaking cover; when you exit cover without leaning you make an awkward step back, which can result in you falling down through a hole in the floor. You also cannot stand in cover, you can only crouch, and thus always exit cover in crouch.
Enemy AI switches between simple-minded and omniscient - you can shoot the first enemy in the doorway and get no response from the others; You can fire from your starting point continuously,while right below you the soldiers will run around the building, saying "I will find you" or "He's here somewhere", you keep shooting less than 10 yards away from them, but nobody thinks to throw a grenade up there. On the other hand, you can take some shots then relocate, completely breaking line-of-sight, but if you crawl up to a doorway 20 yards away, the same enemies will fire at you before they can even see you; The second sniper encounter on your way up to the vantage point, no matter how carefully you crawl the sniper always sees you, despite you lying in your dark uniform on a dark floor in a dark room and the sniper on the roof actually not looking in your direction.
Spawning Enemies break Immersion - that second sniper just appears on that roof when you get to the second floor of the vantage point house. You go outside again, he's gone. Or that one guy that spawns when you get close to the second place to plant the explosives and starts calling out the bodies of people you killed a few minutes ago, but nobody noticed before because there was nobody there.
The "Stealth" Gameplay is a lot more rudimentary than all the PR indicated - unless that's just for the Demo; but for the Demo at least it's obvious where the game forces you to do things a certain way.
When carrying bodies, sometimes you drop them softly and quietly to the ground, sometimes you just throw them down, sometimes you can't drop them at all.
You cannot catch a body after a stealth kill.
I believe that in the first game you could time your shots to explosions or Artillery fire in the background to mask them, but that does not seem to matter here. Not to mention that it's almost impossible to do so when in Focus Time, because of the sound fade-out. The same goes for making noise. As someone here mentioned, dropping down from a windowsill makes a lot of noise, and even if you time it to coincide with a huge explosion in the background, enemies still hear you.
No melee-attack - sure you can stealth-kill a guy from behind, but if he happens to turn around you should be able to pistol-whip him. Not as quietly, but there should be something.
Movement and collision control are terrible, especially when prone; the character jitters through tight spaces or up small inclines.
Movement is often restricted, you can't crawl here, or up steps or inclines, can't go crouching over small obstacles, and things lying on the ground have a huge no-access bubble around them. But your Sniper Rifle will phase into the wall without a problem.
I would have loved the ability to roll left and right when prone.
There's no way to ADS with anything but your Sniper Rifle, which is especially odd regarding the Silenced Pistol.
I'm definitely not happy about the same amount of scope sway whether you are standing or prone.
And that "Slow-Mo" Bullet-time stuff to counter the constant Scope Sway... I'm undecided about that. On the one hand, it looks cool, helps with aiming (Scope Sway, again), but I definitely do not like that you have to adjust your aim again because it zooms in.
Speaking of which, shouldn't the Mil-Dot / Mil-Line spacing change size with each zoom step? The closer you zoom-in, the more space is between the Mil-Dots/Lines?
Therefore, when going to the second magnification of the scope, the Mil-Dot / Mil-Line spacing should stretch so that you DON'T have to readjust your aim again.
Therefore, going into Focus-Time, that sliding zoom should also stretch apart the Mil-Dots/Lines, so that you DON'T have to readjust your aim.
And an option to switch the side of the Shoulder Cam would help, too.
Finally, the terribly voiced German Dialog. I am German, I can say that. It's worse than Anakin in Episode II, stiff and so very monotone. Not to mention the fact that there are only four different lines, all sounding the same despite coming from different characters, which gets terribly annoying when there are more than three people looking for you. At least it's grammatically correct. Not like Alan Rickman's Hans Gruber in "Die Hard" ("Schieß dem Fenster." Ha!) And then there's also that one deluded guy, all alone and by his lonesome, looking for you on his own (alone), while telling the others(?) to "keep your eyes open".
The Good:
The Sniping is still wonderfully entertaining, the new animations wonderfully gruesome, and using dynamite and land mines to setup that big ambush at the end wonderfully gratifying.
Searching and Carrying bodies is nice (and hopefully will be significant in the finished game).
The Custom Difficulty is a great idea.
Sadly it still feels like a four-year old game, and even on Sniper Elite seems a lot more forgiving than the first. But the sniping alone might be enough to carry it... maybe.
As it stands, I'm not sure I'll keep my pre-order, not unless someone can confirm that the finished game offers more varied approaches (less corridor, more sandbox), less scripted encounters (i.e. you have to kill those guys; or that Sniper will always see you), upgraded and consistent AI, polished cover-mechanics and collision control, a fix for the "mil-dot/re-adjust aim with each zoom-step" problem and improved Stealth Gameplay.
A frontal melee attack sadly won't happen as it includes new animations, but the rest is just programming.