Team Fortress 2 problems with Xbox Live

If you are on Xbox Live and have played Team Fortress 2 at all, I am sure that you may have noticed a problem with the networking. To be more specific, lag. Recently an update for the PC version of this game was released but we are all still waiting for the Live version problems to be addressed. I was trying to play today and could not get through an entire game without some type of problem. I know that some say "Maybe the problem is with your network." Nope. I am constantly playing COD4 on Live and have very little issues with that, if at all. You would think that the developers would try and fix the problems for subscribing customers that actually did pay for this game. This is not a jab at PC gamers but they are the ones that pirate the majority of the titles. Microsoft and Valve need to get their act together and get this worked out. It's bad enough that players could not even log onto or retrieve their gamer tags over the Christmas break, now this.