I think this kind of fragmentation with restrictions makes the gameplay too complex overall and kind of difficult.
Therefore I would prefer a simpler solution like a increase of the mine disarming time, which was already mentioned.
Generally going from a game with specialized characters, which couldn't be customized to customizable characters seems like a hell to balance, especially because of some unique characters like sbhs.
Not to mention that the characters have different speeds now and are equipped differently with mines, c4 or grenades.
I liked the old Renegade and its gameplay, which led me here.
Regarding this it seems a bit unnecessary to me to change so much and going through this kind of trouble.
