This part of the tutorial deals with the next 2 steps. First I added a bunch of the extra pieces from the aforementioned tank to the barrels. The only things left are to add to them now is a few little 40k pieces and an ornament/sight on the front. One other thing is to do green stuff around some of the bits to close the gaps and to give it a sort of welded/repaired appearance.
Next is a 2 step process on the main body. First I inserted a piece of tupe between the two sides that acts as a mounting point for the cannon. I also added some plasticard on the inside and then verticle pillars, these add some more depth and a place for the first part of the gunshield to rest.
Anyway more as I get it done. Hope this helps some of you out.