HELP with TD

[Axtyler#1]

ok so im making a standard Td. Each player has his own space and each space has 2 portals. Units spawn from one and try to enter the other. If they do enter the portal they are moved to the onther persons space. Well im trying to make to make it so that if there are more than lets says 1000 enemy units on the map then you lose. Green Td does this for example. and my next question is how to make a leader board that shows how many units are on the map and the percentage until the players lose. thank you :thup:

 

[BlackDeath09]

free handing this kind of
Event: Map Intialization
Conditions: N/A
Actions:
Leaderboard(or can do this with multi)-Create Leaderboard Titled Creeps on Map
(or whatever name u want)
Then do action everytime creep is create add 1 to leaderboard, then do everytime one creep is killed subtract 1 from leaderboard.

i know its sloppy so if u want to wait for detailed gui example go ahead but thats all it requires. did it with my helms deep map took me 60 seconds to figure the little details out on my own.