Idea for my campaign techtree

First of all, these are all of the Orcs that came from Outland after Magtheridon was killed. Here's the list of units and a brief description.

Peon;
You all know what a Peon is, if you don't I'm gonna report it

Grunt;
Same as the Peon, has a Veteran version since you also fight alongside the non-veteran Blackrock Clan

Troll Assassin**Axethrower
First you use the Axethrower like in WC1 but when you meet the Blackrock Clan you fight the demons with them and after the fight when your men are sleeping the Forest Trolls run away. The Blackrock Clan has Troll Assassins and their Berserkers and other desert trolls in their ranks and lets you use them. They are desert trolls, as said before, and have throwing knives instead of axes. Both have berserker variations.

Raider
Also when you meet the Blackrock Clan you get raiders. Since lots of your Grunts used to be raiders they count as veteran raiders since they know the ropes and just need a wolf to ride and a warblade to use.

Troll Raptor Rider
A desert troll on a raptor that throws spears. Faster than a raider, really long range, moderate damage, and no armor at all.

Troll Batrider
A Desert Troll on a bat.

Dragon Rider
An Orc warrior riding on a Red Dragon. Since you have ALL of the surviving Dragonmaws in your ranks, you have all of their dragon riders.

Warlock
The standard Warcraft I Warlock, except he has a WC3 "remix" as I think of it. He casts a minor infernal spell as his ultimate instead of summoning a demon.

Death Knight
WC1 Death Knight.

Deathchanter
A Blackrock Clan Warlock that uses Necromancy. Has Raise Dead, Rain of Blood (a minor Rain of Fire that rains burning blood), and a lesser Animate Dead.

Ogre Warrior
A WC2 Ogre. Can be upgraded to an Ogre Mage.

And your Altars of Storms are able to upgrade Ogre Magi and revive heroes, because the Blackrock Clan has the Altars of Storms that can revive heroes. I'm going to learn to model and create a custom building to make Dragon Riders. What do you think about just these units.

Sounds pretty ok. I only noticed few errors from the text. There are no trolls or Death Knights in WC1. The ranged attackers there are Spearmen and WC2 included Death Knights. As for the Deathchanter, wouldn't a Necrolyte fit in better for the name, since they were the original units in WC1 to raise the dead?

But alltogether, reviving old units into WC3 is always great a thing.

Sry bout that. Small typing error.

I like the way you haven't gone completely old school (i.e war I remake). Sounds like you've got a lot of variety with the effects the Blackrock clan has on your normal units and vice versa. Will you be throwing any all new heroes in ???