? unscripted Ai ? ... i'm not sure who the heck told you that - although it isn't exactly NPC style the Ai is still very close to the original, i mean just because you give them a choice of three or so lines or a few more options doesn't mean it ain't still prescripted (something you can only see from playing the game and not seeing a video)
and the physics just isn't as impressive next to similar titles.
i seriously wouldn't sit there and be all like "oh this is gonna be the best game ever" about it because you WILL be disappointed.
it is the next part in the HL saga, and it is a new story rather than a new perspective... try and see it from that point of view than how the engine behaves, because how it plays and behaves are different.
and as i've said before the aim in a rolling demo is to give the user the best impression of a game - they'd hardly have people raving about it if they showed you how guards that fall off roofs can get stuck in concrete like the maphia are about to drop 'em in a lake... or have someone turn to you and say something like "man i could really go for a soda right now" when your trying electrocute a sewer monster.
and i didn't see any shots of when you go to high in the levels that your grenades actually just shoot OUT of the level... you see it flying through the skybox and have the screen shake as it explode - funny but another anooying bug.
they might get most of them fixx no doubt, but the version i have here is essentially the gold. also the story isn't as fluid as before, there are alot of Rambo/Commando style excuses for doing things - you'll end up taking on a whole battlion of people just simply because you have to retrieve like a stupid powercell for a scientist ... and such. The puzzles are really dumbed down
it places the game close to Q2 than HL in that respects.