This is a purely aesthetic issue that I have run into recently. In my usual away team, I have two tactical officers, who I'll call Boff A and Boff B. For the longest time Boff A has had the dialogue on away missions, which I actually liked. However recently, after I remade Boff A, Boff B has been getting the dialogue. I have tried switching around the order of my boffs, tried messing with department heads, nothing has worked. At this point the only way to give Boff A the dialogue is to take Boff B out of the away team, which I prefer not to do because I like having two tac Boff's in my party.