They are the same picture (Mackay vs Dozer skins)
You need to put more thought into these skins, if you are willing to put back the class system you should also pay attention to the impact skins have on the readability of the game. Guess what happens if you play Rao or Paik and you see any of these 2 silhoutes through a wall..... yes you have no clue what is on the other side. Will he have a shield? will he have vanished and grappled to higher ground you have no clue....
Especailly that blast helmet being turned up is such a messed up thing to put on 2 different specialists who knows maybe more have it dunno. Hell it took me so long to figure this out that it wasn't actually a Dozer I was facing all these times and never understand how someone as Dozer was that effective in CQC with a gun..... messed up.
You can even select a more padded armor for Mackay to make it even more similar.
