Very nice SAS
The M16 is one of my favourite WW2 vehicles and yours looks great.
Adding to what Twentecable said , I recently watched a documentary on the battle for Remagan and there was some footage showing M16's fighting off a Luftwaffe air raid, they appeared to be on the high ground overlooking the bridge but hey. who's to say they where in fixed positions and not moved around.
Plus as well as the attacks by the Arado's the Germans also tried radio controlled motor boats packed with explosives to bring the bridge down and but im not 100% sure they fired a couple of V2's at it as well
Ian