I watched most of it, 20 minutes at least. I came in when the guy was just picking the first c lass of soldier to show.
I only remember small bits like when he talked how if the player kills the enemy leader, the rest of the enemies get frightened and run. Sniper c lass can pick a lock and use a rope to get onto a roof top. When asked how much the player can destroy buidlings he answered that it depends on the level, some have lots of destrcutible buildings and some less. In the second part he controlled a tank for a while. He didn't say anything about multiplayer, that was a secret.
Two times the host said he couldn't pronounce the name of the person whose question he read, and the other one he couldn't pronounce was Ardazu, who asked a question in the last minute, after the demo was over.
I hope that's enough proof.