This “Special edition” camo is in the 1.1 test sever. The regular Caernarvon Action X Tier VIII British premium Heavy Tank first went to supertest September 2017 but has yet to be released for sale. The Action X stats have been unchanged for a while and we have the latest test sever screen shot at the end. Update added the tech tree Carenarvon stats page at the end. Both stat pages will open in new tabs when clicked so that you can move them to view side by side.
Pics WoT Express