From the videos ive seen from him so far:
1. Turns out only some of the buildings are destructable, yknow, the ones you can enter. Like BC2, basically.
2. the G36C makes a reappearance! Fuck yes. RPK-74M used as russian default LMG (it seems).
3. The guy really doesnt give a fuck if people find out who he is. Or hes really that stupid.
4. Lightings nice.
5. Vehicle combat is 'ok' from what I saw w/ the APC footage on metro.
6. YOU'VE GOT LEGS! (we know that already, but still)
7. Pistol running animation is a bit herp derp, looks like he should be walking, however when hes walking it looks like he should running!
8. Might have seen it, but I clocked an M27 IAR in the kill screen. MP-7 seen on killscreen.
9. Usual alpha stuff, sound dropping out, lag/memory spikes, etc.
10. SV98 and M1014 Shotgun confirmed (shotguns sound is like a dart gun though...). M1911 confirmed. perks such as Sprint and Ammo boosts are confirmed.