M8 Scott
Imagine if you will, the stereotypical WW2 American soldier.
Now imagine him as a midget.
Now imagine him running at 35 mph, up to the nearest Aryan Germanic adonis and capping them right in the knee with a 40mm beanbag launcher.
That is the M8 Scott HMC, basically a 75mm howitzer mounted on the fastest light tank chassis the Americans could produce and featured as a unit available for US forces in Flames of War. The M8 can serve in its intended role as an infantry support gun, or be used as an anti-tank option for direct fire.
Mid War
Late War
IRL
The M8 was created from a need for a close-support light tank, early experiments with an M3 Grant Chassis were abandoned when it was found that an M116 Howitzer combined with an M3 Stuart chassis created a small, fast, and sufficiently powerful howitzer that could assault enemy positions and provide adequate support to the infantry. With -20° of gun depression, the M8 could literally roll over the top of a hill, and surprise the enemy with sudden 75mm explosive shells from a safe position. The M8 proved to be a highly adaptable and frankly long-lived machine, serving all the way to the Yugoslavian wars 49 years later with partisans.