I've heard the M4 Sherman had instruments on it that allowed it to act as an artillery piece. Is there any evidence to suggest this was effective?
I've heard that the Sherman had of course, its High Explosive ammunition which was mainly used in an infantry support role. However I've heard that it had the instruments on board (High quality radio, elevation/azimuth controls) that allowed it to act as an artillery piece. However I've yet to find any evidence as to how well this was used. Was it just something cheaply added on "just in case" but never really used or was it something that Shermans could oftentimes find themselves in use of?