Sd.Kfz. 251/17 is a German Anti-air unit.
The most widely produced German half-track, Sd. Kfz. 251 was introduced in 1939 and remained in production throughout the war, with at least 15,252 units produced. The popular Hanomag, as it was called by both Allied and Axis soldiers, was distinguished by its heavily angled armored hull and a very large track area with no return rollers, providing good traction and performance. The use of Schachtellaufwerk, overlapping and interleaved road wheels, contributed to it, at the cost of increased maintenance and severe vulnerability to Soviet winters and mud seasons, where they could be frozen solid.
Model 251/17 was armed with a 2 cm KwK38 on a pedestal mounting with a small armored turret to protect the gunner.
In theory a Armored Panzergrenadier company should have three Sd.Kfz.251/17 in a Flak Group that also carries the Machine Gun Group with the three more serving as Platoon Commander's Vehicle replacing Sd.Kfz. 251/10. In theory the Armored Panzergrenadier battalion should have 21. One in regimental engineer company and 7 in the armored reconnaissance company.
While in reality the weapons of the Sd.Kfz. 250/9 and the Sd.Kfz. 251/17 are identical, in-game, Sd.Kfz. 251/17's weapons does not have AP effect. The pedestal mounting allows a traverse of 360°, but instead of a semi-open turret, this has only a shield towards the front. In-game both are treated as open-top vehilces prone to lobbed grenades (range: 50m) and lobbed satchel charges (range: 100m). Based on the SdKfz251 as opposed to the SdKfz250, in-game Sd.Kfz. 251/17 is slower. In contrast to the 250/9, Sd.Kfz. 251/17 can aim much steeper, making it a much better AA weapon.