Originally posted by zag
what i think you need is a target_count or something similar which triggers the next group of opponents when you have killed the right amount of people..
does that sound right?
Thats definately one way of doing it, and is one of the easiest (you don't need to use ICARUS). Here is Drakewl telling me how to do it, nigh on two years ago:
http://www.lucasforums.com/showthread.php?s=&threadid=73693&highlight=counter)
How time flies...
Also...if you link up two NPCs (select one, then a second, then control-k) you'll find that only the first will be in the level. Take him out, and the second will spawn. Using this, you can create all kinds of ladder type action.