The game was great. Totally enjoyed playing the Single Player Campaign.
I do however need to state that the requirement for "Steam" ruined my week. After Installing the game, I had to wait HOURS while the latest update was downloaded and Installed. I could not find a way to get around this. Both the Direct-X 9 and Direct-X 10 version of the game required updates from Steam.
However, once these updates were complete, the game got going and I got immersed in the single player campaign which I thought was fabulous. The cut-scenes really make for a Great Story and could be a Good Movie as well.
There are some challenges with the game play specifically around Weapons Management. You are only allowed two weapons and if you click on another, the current weapon is replaced. In certain instances, VS weapons, can be removed and utilised. This made for a challenging experience as I kept on inadvertently picking up a weapon and dropping the one I really wanted. This also applies to VS suits / vehicles.
As for the rest of the game, worth a shot playing. Just one thing to remember, If at first you do not succeed, you are probably not on the right track!