Not really diorama as a boarded model but more separate items that will be used with the 1/16 RC tanks on open tank days...so in some ways, I suppose a large grass area with bits on becomes a large dio 
Here is a small fuel container, some empty shell cases palleted for re-use, barrier. metal obstacles, panzerfausts.

Here is a small fuel container, some empty shell cases palleted for re-use, barrier. metal obstacles, panzerfausts.