I mean good luck getting DB host as a naval recruit. May want to get promoted a few, then you get a higher chance of hosting the DB after your event.
Also I like to think of the mission briefing by naval as a sort of in-character review of the event. Like we were expecting this to occur, but than they attacked us! And all this crap happened! Then we finally won when we did blah blah blah did blah blah blah. Unless the GM gives the naval something to say, like a document or something of the sort. Then they will say that in character. Pretty much like a battle report, or arrest/call report for police.