I already had the idea, it's the best way to use the misiles I think. I have already designed three ships that use this principle.
Anyway, I tested your ship, it's an effective design, I made it face one of my ships designed with the same principle but, rather focused on the shield rather than the armor level defense, yours has won despite the destruction of just under half of its missile launchers. Then, I tested your ship against my monster at 8 railgun at 600% +, you did me 42000 damage before being completely annihilated.
I recommend that you remove the shields you put in your armor, which are more of a weakness than a force. A railgun capable of digging so far will easily destroy them and the explosion of the reactor helps your enemy more than anything else. But, the big weakness of your ship is its very bad maneuverability, a real brick. If he crosses a higher firepower he has absolutely no way to escape or take the initiative.
It remains a good design, you have destroyed all my other ships.