USMC M1A1 with the experimental "add on armour" panels welded to the front of the turret (can't remember the designation). Time-wise, this was after they removed the retaining ring from the drive sprocket (an experiment to attempt to reduce thrown tracks), but before the rear side skirt was cut to a larger opening than initally used (solving the thrown track through mud buildup problem). It is fitted with a Hoffman system and kill light, the commander's .50 equipped for blank firing but it does not yet have all its MILES sensors on. Suspect that its fording kit (Marine M1s were deep fordable) is in the clag on top of the turret behind the CC.