Anyone who has seen the Walt Disney make of the story of Hercules will remember the fight against the Hydra.
If you haven't, it goes like this:

Cut off one head, Grow three more to replace it.

I've taken that phrase, and applied it to my good friend, Mr. Militia.

Basically:
Using AGE 1.8, I've managed to make unit's multiply in numbers when they die.


Playing upon this, I've made Mr. Militia here do some quite nifty things.




And even:



At the moment, the maximum I can chain-spawn from one unit is four.

Why? It's all based on Town Center's and Gates.

Town Center's are very unique buildings, because they aren't One building but actually three bolted together in the same way Gates are.(As seen in this screenshot)


Buildings like the Town Center have other Town Center parts spliced onto them. (I believe with Town Center's; its the Main building, the "wings" and the Pillars. With Gates its the Gate, and the two gate towers.)

To make Mr. Chain-spawning Militia, I made my own Building.
I took an Outpost, got rid of its name, LoS, Health, Graphics and all that stuff. I changed its death to create a Militia corpse, but also, I assigned it as the "Head Unit" to two other buildings I made.

Those "Two" are actually one, but I made them Annex 1 and 2.
These Annex buildings are identical to Mr.Militias Corpse building, but instead of creating a corpse create a Militia.

This, as you can tell opens so many doors.
Im playing around right now with making it spawn more than 4 units

(Spawning a building as an annex, but that spawned building also has annexes)