My observations, parroting a number of points already raised - particle effects are the world's best. The persistence of the smoke is very convincing and adds a lot to the atmosphere. The motion blur is fantastic. Yes, it can be used to cover up rubbish graphics, but when you stop and look, and see everything's looking good, you understand that the motion blur is there to achieve an effective, deliberate look, and not hide the weaknesses of the engine! Deepbrown's destructibility gif looks great, but I imagine that's in a scripted area, and destructibility isn't like that everywhere. Like the original bridge destruction gameplay we've already seen, the bridge explodes fabulously, but it's an objective of the game which can be engineered into the script to look great, add to the cinematic experience, but not require a worldwide destruction engine. The animation is excellent, very natural, but the bodies lack mass. The elbowed Helghast sends his comrades leg sliding across the floor as if it were on ice! And finally I haven't watched all the trailers yet, but what I've seen so far doesn't have the world's greatest AI. This could be 'coz the game's in easy mode or whatever, but when you see a beautifully animated Helghast casually climbing over a railing while getting shot at, you're left scratching your head.
