I stopped now with Mordor, played 19 out of the 20 main missions, the last one is still locked, as you need to build your own army. And there's exactly where I have my problems at the moment. I brand captains to fight against other captains and become warchief, which I also managed once, but then when there was the fight of "my" warchief against another one, mine lost the battle, thus you have to start over again. I had several captains branded, but some then lost again against others, which always left me without having anything left. The procedure is quite time consuming, plus it's not an easy task to do, as battles against warchiefs bring also 2 captains plus many followers, and it's quite tough to get rid of them. Warchief alone is fine, but not in superior numbers. So I just thought to leave it like this, had a good time with it, and I will now do something else.