Lets call our unit a Preperation Pack. When our unit builds a building, say a small farm, how can I make it die, I think it has to be using triggers.
Unit - A unit Finishes construction
(Unit-type of (Triggering...
So, you went and made your self an icon, havent you?
You go to add it to your map when...
It hits you! You havent got a border!
What do you do? Give it one!
Button Manager v1.8 - (Goto)
Used to add the border to the icon. Internal Link.
I'm not sure if you can, but can you make it so that when a unit (Most preferably human) is in combat, its HP regeneration freezes, but when it exits combat, it waits X seconds for the HP regen to start again.