Re: movement classes
			 
             
			
		
		
		
		Ther is some, considering at least sand and snow. Not much, but some. Dont know about the tracked vs. paved road, whether AT-wheel gets a bonus or not. The ground pressure with tracked vs. AT-wheeled should at least make a difference in some burying earth types. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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