Very well done in general. Requires careful planning of roads which took several failed attempts to figure out which felt like a good puzzle.
Orrior AI seems to need a little help and the cap at 80 makes it quite hard to actually defend both sides of the base. Either that or a bug was keeping 80 from actually being produced. It would be nice if they prioritized enemies within the watchtower range. Or maybe it's that the garrisoned troops aren't actually leaving the towers? When a tower is destroyed, suddenly a stream of 20 new Orriors are produced from a fort. Cycling through supplied forts would help rather than producing out of the same fort. I kept having half the map cleared and the other half munching up my buildings with Orriors maxed out and multiple watch towers on both sides.