What's this I hear about you controlling a captain and building him up to eventually become a warchief and have your own army? That sounds interesting.
Better to do the main quest. Your Wraith get new abilities that help you out better when you start facing War Chiefs.Man some of these captains with a posse are a pain in the ass. Then i stumble upon another captain with a bow as im fighting this captain and his 8 goons. Shit was all bad. Murked me then they both got stronger. I aint really been doing too much so far. Just some side quests, collectibles and killing anything that gets in my way. Just leveling up a little bit before i continue the main quest.