I've already finished both Season 2 and Season 3.
Are we able to go back and replay that content?
If so...how would I do that for the PC?
Season 2 (Keener's Legacy)
https://www.ubisoft.com/en-us/game/t...zCrGIw9jG/null
Season 3 (Concealed Agenda)
https://www.ubisoft.com/en-us/game/t...mUvCphmzd/null
You can replay the final manhunt missions from previous seasons - if you unlocked them when those seasons were live, or on the current seasons reward track.
They should be available to you when selecting mission difficulty as a different mode, similar to switching between invaded/non-invaded versions of a mission.
OK, after much searching and discussion I found out how to specifically fight against the Prime Target in each season's manhunt.
Season 1: Jupiter (Roosevelt Island)
Season 2: Hornet (Tidal Basin)
Season 3: Bardon Schaeffer (Coney Island Amusement Park)
Go to any of these locations and once you get there, click and hold down on the "F" key to bring up the Mission Options panel.
Once you are there, click and hold down on the "G" key to toggle the Mission Mode.
The screen should then change and you'll see that the Prime Target is now listed.
https://imgur.com/a/BvxMOCl