The specialist hierarchy as of right now
I came across a video that gave me a lot of thought about where each specialist is at in terms of how well they do.
https://www.youtube.com/watch?v=zIkdISmId4I
I more or less agree with it so I will write down the ranking he did
1# Mackay (the most OP passive)
2# Falk
3# Paik
4# Sundance
5# Irish (I did not knew he could get more armor from walking over dead enemies)
6# Angel
7# Rao
8# Liz
9# Boris
10# Casper
11# Dozer (way bellow the others)
Dozer in particular is in a terrible state. Both his gadget and his mastery are indescribably bad. He is only good for melee kill missions.
Irish was a surprise for me because the wording ingame was not clear about him being able to resupply his own ammo out of dead people.
Paid and Sundance could swap places depending on the map.
Mackay is ridiculous with his ADS strafe speed and I am surprised people are cool about it.