would this work for spawning enemy

[jdbecks 10]

Once a unit is destroyed, lets say elecgen1 you can have enemy units on the map but in the presence box write,

this !Alive elecgen1;

so once the player blows up the elec generator the opfor units appear?

[Tajin 349]

I believe the presence box is only checked at the beginning of a mission.

[jdbecks 10]

yeah I just tested it, any other way around it?