The USA did add dozer blades to their 105 tanks , usually attached to the HQ platoon . No dozer blades on the Croc I'm afraid . Cullen hedge row cutters , you bet .( and only one Cullen seen on Cromwells , a test unit in UK , don't be fooled by all the kits that give you that option )
While the Churchill could go pretty near anywhere , over hill and mountain , and had no problem crashing through the Normandy hedge rows , the Croc trailer would get hung up , twist at the linkage and break . So they added Cullen cutters to force the rubble out of the way , problem solved