I have just uploaded the first copy of the German Half-Tracks document. It currently contains all of the Sd.Kfz. 250 and 251 variants, as well as the 252 and 253. More will be added at a later date. We are also working on the German Armoured Cars, so keep your eyes peeled for that.
The German Half-Tracks document is available to download from the German Forces section now.
The intent is to separate out the different type of vehicles for the larger forces, like the Germans, so that it is a little easier to find what you are looking for. The Armoured Fighting Vehicles (tanks and SPGs) will be in one document, the half-tracks in another, then the armoured cars, staff cars, trucks and other support vehicles will be in another. With the Germans, because they have so many armoured car variants as well, may have them in a separate document.