Unit Condition of Presence & Trigger

[Killy_McMurder 10]

I've had alook around here and the Wiki but i can't seem to find what i'm looking for, so apologies if i'm duplicating something here...

Basically, i have a helo that i only want to appear on the map and carry out its waypoints once a certain trigger has been activated.

I've tried the following in the helo's Condition Of Presence field but it doesn't seem to work:

if (triggeractivated trg1) then {TRUE};

trg1 being my trigger, which is simply activated when any unit enters its area.

Can anybody tell me what i'm doing wrong here?

Or how i should actually go about getting this unit to appear when the trigger is activated?

[shuko 59]

Nothing to do with condition of presence. You have to create the vehicle when it should appear.

[savedbygrace 2]

The condition of presence field is read at mission start only, so it will not work the way you hope it will.