Re: Off topic
			 
             
			
		
		
		
		Plough on front - probably used to dig in, could be used to clear routes when deploying off-road (e.g. of fallen trees?). Same as for the S-tank, etc. Maybe its to level off a firing platform that is too bumpy. 
 
Only one has it - so whatever use it is specialist (leads columns and clears debris?), or maybe just for trials?. 
  
It's most probably not a recoil buffer like tube artillery rear spades - rockets dont have recoil to abate. And these things offload them to the flank anyhow. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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