trigger help!

I am making a battle type map and i neeed help! I want it so in 5 mins, i lose but in order to win, i need to kill like 20 enemys befor 5 mins. how!? I want it to count down. and my other one is, if i kill a unit, a trigger stops working like killing a building and no more spawn for it. how! I need help! 0_o :(

Ok,

Make a variable called kills or anything u want.
Then make a

Event - Units Dies
Condition - Whatever of those 20 units are = Dying unit
Actions - Set variable (kills) kills+1

Then after the fives mins have a action like this
If kills is less than 20 then do game defeat else do nothing

and the other one

Just do
Event - unit dies that u want
Action - turn off the trigger tat builds it.

If u want u can send me the map and i will do them for you. I will not steal anything from your map and i will keep it confidential.

thanx! Ill try that now and i well tel u if i need hep again or if i would wanna send it to u. I jsut have 1 question. I want it so i kill 3 diff units. in my map, i have 3 diff enemy unit u can kill to get a point(kills).is it same but just in event have each of the 3? thanx again dude!
:D

Ya, you could do it that way.

thanx! im trying RIGHT NOW!:ggani:

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srry double post but u cant do it for me because u have tft! and i have roc! i saw your terrain and it look like tft soo... thats to bad.:(

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hmm.... i am having a bit of a problem. i cant do it! help! it hard! im new at triggering also so that might explane it. and when u said
" units dies" that is just 1 guy, not the whole lots of the same kind.

ok, ill explane my map. 2 heros are defending a place they own and orcs come from boats. and so in the place, i have the enemys, heros, and the defenders like the shoilders that u cant control that helps u. and in 5 min if u dont kill 20 orcs u lose. but if u kill 20 befor 5 min then u win. there are archer,spearsmen,genreal and warrior orcs. so 4 diff kind of them. and if i might mask, can u show me a pic of it. like a screenshot of the trigger? thanx! ALOT!;)