Uhh, this is beta. Not a demo, not a final release. There are issues. Hence the beta and not a demo or final release. Betas are suppose to show problems so that they can be corrected for final release. Remember, this is a beta, which means its not a final release, so things still need to be worked out.
I understand polt, this isnt my first beta. I beta tested both COD4 and CODWaW. I played for another few hours and I must say, graphically it is awesome, destroyable buildings and trees are a nice new feature. However the hit detection is way off. Lag was much better later on this evening, however as a whole, right now I am leaning to canceling my pre-order. It is not a COD killer by any stretch!