Why are people saying that the new agents is 22nd and harbor is 21st, when even after including harbor there are only 20 agents playable where is the missing one??

Like if I place a cage by my feet its really inconvenient to active it and shoot forward at the same time. Or if I have one of those overhang kinda things snapping to the cage and then to there body is mildly inconvenient. Or if one of my t...