I must be a complete moron, because this just seems like trying to put a round peg in a square hole. The multimelta has a grooved part on either side and a hole directly in the middle where it seems like something is supposed to fit. The two angled parts seem like they should go on the cupola, but where does the multimelta go? I am just not seeing a way for them all to go together..
edit: I know when I assembled the heavy bolter for the cupola on my rhino, everything fit perfectly because one piece of the heavy bolter goes on each side of the cupola. Very simple.
Edit 2: figured it out FINALLY, I just have 3 other questions for this sprue.
What are the things in red used for? Are all 3 of the parts circled in blue on the bottom used for the hunter-killer missle assembley? What is the other circled blue part used for?