sorry of missing out in canon, If you woud like to fix that for me as i seem to be unable too... I would very much appreciate that.

Ellri, yes.. Weapons Officer at the bridge is indeed the job name Ethan applies for. correct me if im wrong but wouldn't that also mean he's 'in charge' of the ships shields too?

about the studies... as much as possible? maybe from files from space programs before the tempest. friends, family with particular knowledge idk