Agent, you could also use death counters that corrospond the the post. But you'd have to use a different unit death for each post. for the countdown of capturing the post. Also that way, you could make it so only the person trying to capture it can see it, so it wont inferfere with any other posts trying to be captured at the same time. You could instead use it like this
-----------------------------------------------------------------
Condition
-Bring atleast 1 men to "Capture post area 1"
-(Something that detects if the post belongs to the opposing team)
-'Post 1 being captured' is cleared.
Action
-Set Switch 'Post 1 Being Captured'
-Set deaths of 'unused unit1' for Player# to #.
-Preserve
and
-----------------------------------------------------------------
Condition
-'Post 1 Being Captured' is set
Action
-'Subtract 1 death of 'unused unit1'
-Preserve Trigger
then to finish it
------------------------------------------------------------------
Condition
-Bring atleast 1 Unit to "Capture post area 1"
-'Post 1 being Captured' is set
-Player# has suffered exactly 0 deaths of 'unused unit1'
Action
-(Give post to other team)
-Preserve
-------------------------------------------------------------------------
Condition
And for the trigger if you leave the area or die.
-Bring exactly 0 men to "Capture post area 1"
-'Post 1 being captured' is set
Action
-Clear 'Post 1 being captured'
-Preserve
Your way might also work a lot easier, but i don't think it would work because what if 2 posts are being captured at the same time, and 1 unit gets to the end, wouldn't both posts automaticly be captured? For my way, you have to use a different unit for deaths for each post so they dont get mixed up. I'm not sure if my way is the best or if it works good, but i dono i thought it would work
O yea, i have a question. How come the players units have more HP/DMG then the computers, because in the game StarWars Battlefield the players get a unit that is equal to the computers. In your way it looks like we're getting "Heroes".
Good luck with the map agent. It's looking great so far.