You’ll have to excuse the name in the screenshots linked, I had gotten a bit wild the evening before on Rising Storm: Vietnam!
In this game, on a non-Wikinger map named Rocroix, I managed to burn the crew out of an sWS truck with the Desert Rats Crocodile. Upon crewing the truck, I was able to treat it as though I were a OKW player. It was a tough pick, but I ended up building the medical HQ truck (the name escapes me.)
I was only able to build German Officers (Obersturmfuhrers) and Pak 45 AT guns from the truck. Said officers were upgradable with their three default upgrades of: Medic Bag, Mp40, and StG-44.
Here is the imgur album.
If you are interested in the map, Here is the steam workshop. It was a fun map, the middle bridge is nigh indestructible.