I tend not to comment on these builds because they fall on deaf ears, but these are particularly bad builds.
The fuel truck: At first it looked like either the cab or the tank were poorly aligned but it's the side panels that aren't square. There is a big gap between the lower cab and roof. Sprue attachment scar on the right side of the round thing on top of the fuel the tank.
Kubelwagen: The oar has a BIG ejector pin mark. Heavy mold line on the convertible top which is installed crookedly. Sprue attachment points were not cleaned up on the body side and shovel.
251: Mold lines and sprue attachment point galore. The assembly of the rockets boxes is just plain sloppy: parts aren't aligned, big gaps, the right rear is not sitting on it's carrier,the rockets point every which way in the boxes. The frames appear to be PE that were bent in assembly but never or poorly corrected. Gap between the vision port and MG support over the driver's seat. Floating tracks at both idler wheels. The first and second road wheels on the driver's side are hanging off the tracks.,