I don't think it makes sense for Roza to start playing duelist when they just picked up Corey who is a main duelist/skye i believe. More than likely he will play smokes when Levi plays sova and they wanna run double controller.

Wardell will Chamber/Jett/Sage?
Levi - Viper/Sova
Corey - duelist/skye
Rossy - Astra/viper
Roza - Smokes/Skye