While in combat there should be a lot more interaction between the bridge officers. Such as them talking to each other, updating you on ship status, ect. Battles in the game feel kind of lifeless sometimes without your officers giving you advice. It doesn't even need to be talking, it could be a small text in a corner or something
That's one thing that would make the game better. At least for me.
I prefer them talking in audio form than chat pop ups. I got enough going on in my screen, than to have some words in my way while i'm trying to see my next target.
If you have your mission tab in the chat window still around, they definitely "call out" skills on the ground. Not sure why they don't in space, also. Though I gather you're more looking for actual audio.
Actual audio on boff power activation would be nice. Something like in Bridge Commander as abovesaid.
But then in most fleets, Teamspeak is used so I like to do approximations of BC bridge officer chatter which definitely adds to the atmosphere.
In lieu of actual randomized ship bridge and intercom chatter we can easily do our own and probably do better than most 'canned' voice acting too.
"Sweeping through phaser arcs" etc.
I am also capable of typing at an insanely fast rate without compromising combat performance, so that's where my 'ship to ship' roleplay comes from, when voice comms isn't used for scenarios like PUGs.
What I also like to do (borrowing an immersion trick from 'serious' spaceflight sims like Orbiter) is put up an mp3 track with radio intercepts in it. Doesn't matter if its ATC, ship, NASA or even police scanner, they work just as well as 'mood music' to me.
I use the police scanner stuff for ground STFs - we tend to use a lot of code language as 'verbal shorthand' for STF coordination anyway.