Games vs. Movies and the problem of replicas
For a lot of players, playing battlefield is like reading a book or watching a movie, except you are able to put yourself into the story and roleplay as yourself or a character.
Playing battlefield is a fantasy you want to immerse yourself into.
.The Specialists are a great addition from a gameplay point of view and I really like the idea and what I've seen so far.
The problem is when it creates replicas.
A movie doesn't have 2 or more identical characters. That would be ridiculous.
DICE, try to avoid creating replicas. It's not a big issue, but it can be in the long run and be a "hair in the soup of immersion", but something easily changed.
The solution can be that Specialists have generic codenames and generic backstory so you avoid creating replicas.
Otherwise you'll create a less believable fantasy to immerse the player into.
If there is only one Specialist type at a time in each round, then this isn't a problem and you can keep the individual identity.