I don't know if structure blocks should totally be reworked or maybe just tweaked but there are some issues.
Currently, enemies can shoot through structure blocks to hit pther parts of the ship, but you cannot shoot through your own structure blocks. Makes sense because this is your own ship, but that means this happens...

(That is an incoming bullet. No outgoing ones though)
Now obviously this is not a good setup of a ship (this is probably the most retarded 3.4 million ship I have ever made) but it doesnt make sense. from what I understand, structure blocks are basically just cubical frames. So, people should need spacesuits to walk out on them but i mean whatever. Forget about airlocks too. Anyways, if they are just a frame, and the enemy can shoot through them, you should too. You wouldnt hold fore just because you have even a chance of damaging your own ship (which this is a pretty useless part of a ship), especially if you are getting shot at THROUGH THE FRAME!
You might say this could be exploited and people could use a bunch of frames in front of all of their weapons. but remember, the enemy can shoot through it too. You could balance this by making your shots slow down going through a frame, whether or not you (Walt) decides that you would take friendly damage by firing at your own structure blocks.
I don't exactly know how else to fix this. maybe structure blocks should be removed altogether, maybe they have even less health, maybe all shots have a % chance of randomly exploding when it goes through a lone structure block, maybe structure blocks should reduce the lifetime, speed, and/or range of any projectiles that pass through them. There are many solutions and balancing to happen here and it needs to be thought out thoroughly because nobody wants nerd ships that are just weapons with 100 structure blocks in front of them.
Anyways i don't know why I hate structure blocks so much, or maybe I do like them and just want them to be more useful or less annoying but something needs to change.