Re: SSC Echo and Fives 1/6th -Order Now!
Echo in Season 3 and Fives in Season 6. Technically Echo is still alive as confirmed via Filoni's concept art released after the conclusion.
There was a regular set and an exclusive set. The exclusive set as seen in Rebelscum's photo archives had a variant backpack with the identification numbers "1138" which is an easter egg found in all six Star Wars movies (homage to THX 1138).