The original 6-pounder MkI was made by TheJackalx2k, AaronAsh and Rad and it was upgraded to the MkIV by Toddel.
The 6-pounder MkIV is not just a reskin from the MkI used in North Africa. This gun has an L/50 barrel (meaning the barrel length is 50 times greater than the barrel diameter (57mm), as opposed to the L/43 barrel on the MkI. The 6-pounder was kept in service with the British Army until some 20 years after the end of the war.
Next up we have the Marder I, SdKfz 138, which was made by Toddel.
The German army had captured more than 300 French Lorraine 37Ls in 1940 and, in May of 1942, it was decided to put these artillery tractors to use, by converting 170 of them to tank-destroyers. The new vehicle, called the Marder I, was armed with a 75mm PaK40/1. Although most Marder Is were used on the eastern front, some were also used in Normandy, most notably, by the 21st Panzer Division.