This shows 5 x 2 storey units Consiting of 1xa, 2xd , 1xb, 1xe and one garage spacer (unit H) placed together to form a ruined street corner with 2 bags of mixed rubble scatter. As well as using these facades as a linear backdrop, full buildings like this can be created. 
Please note this is not a jointed and complete model but an example of what can be created just by placing units next to each other.