[All technology I've ever used exists and has been proven to work. If you have any questions, I'd be perfectly happy to give you a source, and maybe even a video of such a technology working.]

What gets me are those 'coil guns', they don't sound like weapons used on conventional ships, or many prototypes for that matter. I'm probably wrong and it would turn out that every ship, even fishing vessels have them but I'd like a source for those if possible. Also, just in case you think it though I hope you don't, I don't hate your nation 👍