Well I have my troops ready to pounce on Auric. Should be a fairly quick war. After that I think I need to chase after Ethne or Hannah, the two score leaders. I want to leave Garrim to found RoK for me. As for religion, none have been founded in this game. Maybe the orcs can go all Octopus Overlords. The problem is that I have many tech needs at the moment Hunting and Sanitation being high on that list (and let's face it the orcs aren't that smart).
Let's see how we go anyway!
First turn in...
Interestingly, by building a mine on the lair, I have destroyed it

. One way to get rid of the pesky barbarians.
Rantine's odds are much better over here
We take Garryvoe easily with no losses (Rantine and axemen versus warriors and scouts.)
Warfare comes in for some nice CR promotions. I choose Fishing next so I can get an exploring work boat out and about to check on Hannah.
Auric is finished a few turns later.
Garduk contains the Bone Palace
Animal Husbandry follows Fishing as we now have three pastures to build.
I decide to keep the attacks up and march on Ethe pretty much straight away.
Again, my Rantine odds are much improved. This first victory is enough to get him a CR promotion which makes him unstoppable.
The smart orcs pop a GS and build an Academy to smartness in the capital.
The double units from the warrens help out as well.
Although later on I build a settler and have no idea yet what to do with the second one
Animal Husbandry is replaced by Knowledge of the Ether for some fire.
Cahir Abbey is ours.
Hunting is next tech up.
Orcs can't build Mage Guilds, we can build adepts from the get go.
The war continues to go well for us.
I meet Cassiel.
And that pretty much concludes 300 turns. Our three city empire has expanded to nine cities.
Our economy is OK and the warring is going good, except my best axemen keep losing at high odds

.
I have now cut my way through to some barb cities, so Rantine might be having some fun converting them next set. Perpentach has found Ashen Veil but that is still the only religion out there.
My plans are to destroy Ethne, convert some barb cities and then turn my eyes to Hannah. Research wise, Sailing, Octopus Overlords and Horseback Riding are all fairly important. Festivals and Way of the Wicked might be good too. On the home front, getting rid of the jungle is a task long overdue.