Well there is no this or this. I will be using both, and contrary to my fellow posters, I like this update. The maps look solid, and I think that though I did not get what I was hoping for with the weapons, that they will boost the use of the heavy class a bit and add more variety to it's use other than standing next to a dispenser, holding down both mouse buttons, and hoping you hit something.
Except for the KGB, this update to the heavy will do exactly as valve intended, make the heavy more able when there are no medics around. I actually find the idea of replacing a shotgun with a sandwich to be a very interesting prospect, giving up firepower for longevity.
Most people will look at each thing by itself and then think about how to use it offensively. What should be done is to look at what combinations can accomplish what when used together. Natasha is fit more for a defensive heavy, while the sandwiches and the KGB are more suited for a heavy that's on the warpath.
It will alter gameplay with more adverse tactics, it is free, and most importantly, it's still going to be fun. And that's what matters.