Does Sentinel need Awakening?

Primerprime5

I've got a 5 star Tech AG burning a hole in my pocket, and my only Techs as of now are Sentinel, Rocket Raccoon and OG Iron Man. I've used Sentinel extensively as a 4 star, and I don't know if he's worth the AG. Any help would be appreciated.

Sarvanga1_

Only awakening is required. No need to put sigs.