원래 StuG는 보병 지원 무기로 설계되었지만, 소련군 장갑과의 교전에 대응하여 대전차포로 업그레이드되었고 StuG G가 탄생했다. 포탑이 없는 낮은 실루엣으로 방어 역할에 가장 효과적이었으며, 매복을 수행할 때 특히 치명적이었다.

The original StuG was designed as an infantry support weapon, but in response to skirmishes with Soviet armour it was upgraded with an anti-tank gun and the StuG G was born. With their low, turretless silhouette they proved most effective in defensive roles and were especially deadly when carrying out ambushes.