1. 
   BT-2
   Series of medium wheel/track tanks, 1931-3 [SU]
   Found op http://www.jedsite.info/index.html
   
   
2. 
   Bt-7-2
   The BT-7-2 was a Soviet tank used during the Second World War. It was armed with a 45 mm gun and two 7.62 mm machine-guns. It had a top speed of 45mph on road wheels, and 30 mph tracked. It had a range of 220 miles tracked and carried a crew of three.
   Found op http://www.probertencyclopaedia.com/browse/FAFVB.HTM
   
   
3. 
   BTR-112
   Experimental tracked armoured personnel carrier [SU]
   Found op http://www.jedsite.info/index.html
   
   
4. 
   BTR-152
   Series of 6 wheel armoured vehicles [SU]
   Found op http://www.jedsite.info/index.html
   
   

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