SD2:M7 HMC

 is a United States Artillery unit in Steel Division II.

Background
US Army had a requirement with a self-propelled artillery vehicle that had enough armor and fully tracked. The vehicle that was become M7 was based originally on M3 Lee chassis.

3rd Armored like all American Armored Divisions has three Armored Field Artillery Battalion that were equipped with M7s. Each Armored Field Battalion had three batteries of 2 sections of 3 M7. The 3rd Armored had 54th Armored Field Artillery Battalion, 67th Armored Field Artillery Battalion and 391st Armored Field Artillery Battalion assigned.