>>537616920
>The three roles are tried and true for a reason. A possible fourth can exist but isn't developed enough across gaming to even be known.
Except the 3 roles aren't tried and true. The roles don't function like in MMOs. In Hero shooters the roles never worked well at all and is the source of most of the problems the games face.
This doesn't touch on the fact that there are games that have had more than 3 roles.
The entire idea of a hero shooter was from Overwatch, which was a team that failed to make an MMO and retrofitted it into a shooter. The implementation was failed and flawed from the beginning.