Alright here is a quick update. I was able to finish the gun last night like I wanted to. I wanted to use the supplied metal barrel buy it was a pain and refused to glue right.
Today, I moved onto the roof. I started with the hatches. The directions look like you can make the hatches moveable so I tried it. The directions tell you not to glue parts A16, and A22 when instead you shouldn't glue A17 and A21 to the roof. A16 and A22 act as a hinge and should be glued carefully.
Then I fitted the periscopes. I'm not sure why they are clear because since I'm just going to pant over them.
Also, the peroscopic sight for the gun is shown in place in the directions but it is not called out. It is part number C37.
I've got nothing to do tonight so I expect I'll have more done for another update tomorrow.
Erik