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Sasuke had MS activated here and this is obviously not Tsukiyomi. That to me looks like he doesnt have tsukyomi, and it has never been stated that he actually has Tsukiyomi.
First off we have never actually seen Shisui in a battle, so whos to say he doesnt have Susanoo as he has MS in both eyes, dont assume he doesnt have it ,as weve seen five people with MS in both eyes, three people with susanoo as they are the only MS users we have seen in battle, yet only one person with both Amaterasu and Tsukiyomi. That to me seems like you need MS in both eyes to unlock Susanoo, something Sasuke himself has been quoted saying but i cant find the scan.
Dont act all high and mighty and call me an idiot, when im only showing you manga facts, also i never said shisui had susanoo, i only implied it, as i am not certain, and i dont think i ever will be.