So I have finally got my first duplicate 5 star. I had finally built up 750 cores and decided to go head and pull and to my surprise I pulled a 2nd Super Pershing. Is it more worth it to use this on my 2nd platoon or should I just use it to upgrade my original which is about 10 levels behind all of my other core units yet is still super useful. I'm not sure how useful making a tank elite is anyway and who knows if I'll ever pull another one.