VAC is sheet, agreed.
I have nearly 3 days of gameplay racked up, and i have to say, hand on heart i have only run into about 3 or 4 people that appeared to be hacking beyond belief.
Sabotage seems to be the best game type i have played as some of the rounds go on for ages with epic battles and the timer getting down to 1 second and then defused lol, fly by the seat of ur pants type of thing!!
there seems to be some speculation running around that Dedi files MAY be produced to satisfy PC gamers.
IMHO dedi servers would make this game so much better, as IWnet dont really have a clue.
When they said 'it will be nearly hack/cheat/aim bot free' all that did was show a bull a red flag (and then some)
The biggest pain in the butt for me is the fact that almost every flipping area can be jumped onto or into or over to get to a stupid glitch area, and also the crazy azz 1887 shotguns, which are fun but so IMBA its unreal.
Dedi servers may be the only way to keep it alive on PC platform, as so many different forums are filled with members swearing the hatred for this and that about MW2 and IWnet.
With regards to lag, i have not really come across it, i get the odd delay in joining, but not had the timed out or migrating error, perhaps im just lucky as hell!