Blackrock Orc Unit Tech-Tree in WC3 era

[HankHell69]

I have a general idea of how I want the tech tree, just wondering on anyone elses thought's on how you would customize a Blackrock unit Tech tree in WC3 timeline? Would you use Altar of Storms for upgrades or for Heroes or use Stronghold for Heroes? Ogre Mound for Ogre units or for Ogre upgrades? I want a tech tree that isn't OP but isn't weak either. I understand the Red Dragon makes up for other flying units so that even's that out plus raiders are great for ensnaring enemy air units but I do have green troll headhunter in the tech tree for basic range unit.