The main reason I still think that the in game Wehrmacht is a mix of DAK and Wehrmacht assets is (other than 4 combat infantry squads for a single faction) the Marder 3 being there despite being logically the only tank destroyer option in the game files that could fit the DAK, while the Nashorn was only used in Italy and is not present in the current build
Thing is. Wehrmacht has battlegroups and combat commanders, which are most likely will be something simular to the hammer\anvil of UKF in CoH2. Right now in alpha its clearly unfinished and you clearly have everything thrown togeather.
In other words Wehr might aswell have all inf units which they do have right now, but they all wont be buildable at the same time since they will be locked behind combat commander selection.