Dramatic view…. The M10 Tank Destroyer (a mobile, 3″ anti-tank gun built basically on an under-armored Sherman drivetrain, with an open top for excellent visibility) here has pulled up to offer direct fire support to the infantry. While designed to be a rapid-reaction anti-tank vehicle, meant to counter-attack or redeploy to defend against massed Panzer blitzs, the M10 ended up being used basically as a tank or an assault gun due to the operational realities of the Western European theatre when it was deployed.