Hircine the Spirit of the Hunt's past leads many to argue. He himself was never mentioned or heard of in the early histories of Nirn. Some scholars believe because of this that Hircine was not one of the original Daedric Princes and is therefore a spawn or offshoot, similar to Malacath. However this is often shunned on account of Hircine creating Lycanthropes, and the disease existing well into the Merethic Era. Hircine also appears within the mortal realm once every thousand years; but not to destroy, like most princes, but to enjoy a great hunt known as the Bloodmoon Prophecy.
Mehrunes Dagon failed to conquer Nirn in the third era now its Hircines turn but instead of having his followers do it for him he'll do it himself.
Hircine will obviously join the companions as they are followers of his he will help sinding so he can get his ring back anyway if you wonder how he finds the white stag well remember that stag was just one part of the glorious stalker our kind calls Hircine so even when he comes to nirn he can still appear as a stag to even himself he'll work with the frostmoon pack, He'll work with the dark brotherhood because it was an emperor who stopped Dagon, he'll join the blades to work with them to kill off the dragons so they can't stop him.
He can join the civil war or he can let continue so the people are to busy killing each other or he can join a side and become a hero to the people and convince them to worship him Hircine prince of the hunt.
Hircine can marry Aela seeing her as worthy of ruling nirn and the hunting grounds alongside him.
For armor you'll want to use Forsworn armor, hunters armor, armor of the old gods, and saviors hide.
You'll want to master frost destruction magic since hunters must survive in all types of environments in the forest in Skyrim you have to always deal with frozen tundras almost everywhere.