Leader Board Trigger

First of all, this is for a tag game of some sort that I am making. This is what it's going to be like:

Team 1 (9 Players): Ghouls
Win: If Player 9 (computer) owns 200 total units (excluding a couple of towers), then they win. To get the units, the other 8 players will attack critters from the other 3 players (farmers). When attacked by the ghouls, the critters' ownership is changed to the computer. But if a ghoul is killed, 10 of the owned critters of player 9 are also killed. The dead ghoul is sent into the farmers base, and can be rescued by an ally (simlar to sheep and kodo tag).
Lose: If all ghouls are sent to the base of the farmers or if 30 minutes pass by without achiving the 200 critter goal.

Team 2 (3 Players): Farmers
Win: If all ghouls are sent to the base of the farmers or if 30 minutes pass by with the ghouls' critter count less than 200.
Lose: Ghouls reach the 200 count before the timer expires.



What I want:
Most leaderboards count kills of players in mauls and tower defenses, but what I want is a leader board that counts all the units of player 9, but excluding a building (tower).

I am also not good with timers, but was hoping that if anyone could make a timer that expired in 30 minutes, and if team 1 does not have 200 critters in ownership, they lose, and team 2 wins.




If anyone could help, I would be happy ^_^

well if you want the buildings to be included in the Unit count when u create ure custom buildings give them the Attribute: Stats - Is a Building - True


im not good wit timers...sorry :(

EDIT - Sorry i meant false, u want it to a be a unit, so Stats - Is a Building - False

I decided to make it Orc and Humans, for anyone who cares :(

So can anyone make a leaderboard for me, it would help. :D