I agree the lack of a director is a problem but control would by visual sights and on the mount. Again far from ideal.
At least something like GUNAR would be called for. There's no reason to spend the weight and volume on something as complicated as 3/70 if you can't use it effectively
Thanks for the feedback Thiel, Hood, erik_t. This has been more of a speculative addition, and I'm aware its much larger than the Tenacity as built. With the 3/70, we did have a lot of discussion amongst the GFL members; even with the single tube version it was thought that the hull would not be able to accomodate the penetration - hence the bigger size. For its time I still consider that the 3-in/70 would provide good dual purpose fire, and the twin 40mm would give added capability. With the six Fancy torpedo's, I don't see a problem as they are guided - so no spread, and this is not a MTB, having to dash back to base, but a proper seagoing warship with the endurance to match, and I would expect replishment at sea a possibility, so six torpedo's is certainly not excessive. But yes, what is needed is a decent guidance system for the guns - especially the bigger caliber, so I'm very open to advice here, beginning with GUNNAR - that I'll look into - I couldn't find anything small enough in contemporary RN service. As I see it, I could either scale down a bit and go with four Fancy, but maybe no 3in/70 forward; or, stick with the current hull size but beef up the gun control.