The Marder I was the first Panzerjäger of the Marder series. The Marder series of self-propelled anti-tank guns began development in late 1941 to increase the mobility of 7.5cm PaK 40 anti-tank guns by mounting them on a
tracked chassis. The need arose in the summer of 1941 with the appearance of new Soviet tanks like the T-34 and the heavy KV-1 and KV-2.

The Marder I can be used in both mid and late war. In the mid war you can support a German force with Marder I tank-hunters from both Ostfront and Afrika with the Tank-hunter Platoons.

In late war the last few Marders saw service with the 716. Infanteriedivision and on the eastern front until April 1944 with the 256. Infanteriedivision.