Spawning Something In A Certain Amount Of Time After A Trigger Is Activated

[Scarred-Flame]

I'm trying to spawn in two waves of aircraft, the first one spawns immediately when the trigger is activated, and then, what I would like to do, is have the second wave of aircraft spawn at a predetermined time after the trigger being activated, or when all units of the first wave die. I tried using the "Unit Dead" condition but it reads the not yet activated units as dead, does anybody in the community have a solution for this.

[Rudel_chw]

Set a Flag to TRUE when generating the first wave. For the second use the Trigger condition TIME SINCE FLAG, indicating the Flag you used and the number of seconds that have to lapse.

[Aussie Pilot]

You can set a trigger that when the first group is dead it will then activate the second group. Make sure you have late activation set on the second group. Check the attached picture. You can also do as Rudel said but it gets more in depth. With the flags you can enter how long after your first group has died before your second group spawns if you like. I also check the time it takes a unit to fly from the spawn area to the area you want them to be and then move the unit back and forth until you get a good time frame to suit.