Flaws had emerged in the M3 GMC and M10 tank destroyers—they were not fast enough, and had an overly high silhouette which made them vulnerable to direct enemy fire. Major General Omar Bradley, then commanding the U.S. II Corps in North Africa, suggested that towed anti-tank guns could be reintroduced to infantry units—while it was feared this would lead to a lack of offensive spirit, it was undeniable that a small towed gun could be dug in very quickly and efficiently, giving a very low-profile target, though a large gun sometimes took a day to fully prepare. Bradley's proposal was not, however, intended to create towed TD battalions. His intent was to put the anti-tank assets in the hands of infantry units. The fact that the British Army had had success with dug-in antitank guns supported his proposal, and an experimental battalion was established in the summer with 3-inch guns. This quickly gained popularity—heavily supported by McNair—and in November 1943 it was ordered that half of all tank destroyer battalions were to be equipped with towed guns; this was a major distortion of Bradley's suggestion.