It’s 3 static mesh components, “tank”, “turret”, and “gun”. He shows it in the pictures. IN FACT…
Hey again @mattaktive, sorry for the extra post but after a sleep and taking another look at that components list… I realized you do have what you need. There was a post back in '22 that will work for this, It’s a little long but informative.
You need to work this in as relative rotation, not world, but using world values. Here’s the post! You may be able to tag ClockworkOcean on the current thread for any parts of their solution you don’t understand, I know they’re still around! Just make sure to read the whole thing as there are some red herrings early on in the thread due to miscommunications.