I just had to post this picture up as the model is so unusual (I've never heard of this tank before). The RBT-5 with rockets, despite seeming quite an advanced notion for the time, seems to originate before WW2 and was an attempt to boost the range of engagement. I can't find any references about how successful this might have been or whether it was actually used in action.
Erhan has, again, done a very nice job so far (it isn't complete yet) and I can't wait to see the finished model. Follow Erhan's progress over at the MiniAFV blog