Thought I might aswell make an account :D
I am new to ARMA and the main point I am interested in ARMA 3 is the complexity and depth it has. It is something that many people would want in a game, and this game seems to have the level of tactical awareness and team work required to make a game that has a phenomenal atmosphere, that is original and satisfying.
As a new player I really hope that BIS do not dumb down the complexity which is the main selling point for me. Sadly I am going to name drop Battlefield 3, the follow up to Battlefield 2. Battlefield 3 is not a bad game at all, but stands nowhere near the complexity and depth Battlefield 2 had. All I hope is that BIS make a true follow up to ARMA 2.
I agree with the movement problem 100%, reactions should happen straight away, but added animations are always a nice feature.