I really haven't! Whilst I haven't previously read reviews for this game it looked interesting and didn't have that annoying Securom rubbish stuck on. The graphics looked palpable whilst the pictures made it look as though I was playing a FPS Silent Hill-type war game. But that isn't saying much. The game play is ropey, there are massive technical errors and I just had to switch it off because I found it so so bad.
I agree with one of the reviewers here, don't buy, don't rent, don't borrow, don't even bother. I regret my idiocy of forking money out for this piece of rubbish and will now go and bang my head against a brick wall for doing so. Avoid.