I dont even play naval but i think based from its images to could be around 4.0 maybe 4.3 ans can be added to the British tech tree as a blueeatee fleet ship.
Its an interesting addition. sort of another HMS Abdiel sitation with what would likely be counted as a light cruiser, but with destroyer levels of armour and armament Does look very slow though at only 17kts.
There are a load of other ships i’d prefer to see get added before her, but definetly would make an interesting addition. But need to submit a proper suggestion for it