I like the idea. I should flesh out the Protectors a bit more. They are not Gods, and thus, they do not need to have a specialty. So like the God of War would be the Protector of Battle or what not. The Protectors are immortal (immortal in the sense that they cannot be killed in the same manner as a Mortal), and are the closest things to Gods that exist. Now Damian's idea does a great job of explaining the Protectors movement from immortal to mortal. The Protectors that were sent onto E'tos, were the Captains in charge of Protecting the Gate. So you'd have your Captain who excelled as an archer. That skill would transfer over (known or unknown to his mortal self) but it would transfer over tenfold. Essentially, that mortal would have amazing archery capabilities (think Odysseus at the end of The Odyssey). 

Now to your idea with freedom and independence. I could see a Protector who was an amazing huntsman (tracker and very stealthy, as well as being familiar with animals). That Protector would transfer the skills over to his/her mortal self. So maybe the mortal lived on a farm growing up and at the age of 20, a large pack of feral wolves attacked and killed his/her family and all of the livestock. So the mortal Protector (unaware of his/her Immortal past) is somehow naturally able to track down these wolves with ease and slaughter them. 

Unless I read your post wrong, in which case, feel free to correct me.