alive_x ? trigger help

[aggressor35]

I hope i can explain this.....i need an endloose trigger that checks to see if the player and or the playable units in a group are alive. if noone is alive the game ends with a loose debriefing. i dont understand  ("alive_x" ...........command , so if you could break it down for me. Also i have other west units in area , so i cant use a trigger to just have WEST NOT PRESENT.

[Rolpe]

I use a different way. first name a group ex groupA ( groupA = group this) in init field of the group leader.
Then I make a trigger select loose in the type field and in the condition field i write count units groupA < 1
works all the time.

[aggressor35]

does this trigger have to encompass the whole map or what ?
this is all i need to complete my 1st map. thank you for replying.

[Rolpe]

no i use the default size on the count trigger. Glad to help.

[aggressor35]

Thanks M8 for all your help.