It occurs to me that what is shown in the first video is a carbon copy of the first big fight in RE4, only now you're not fighting alone.
It also occurs to me that the characters can be way too close to explosives without getting hurt, that the A.I. really sucks (this could have been designed specifically for the demo though), and that the heroes can walk through solid objects, such as enemy weapons. Dazzling visuals aside, there are some red flags going up here.