Yeah, once all the bases are dead, enemies spawn from the direction of the closest map edge, heading towards a player.

Enemies can't spawn within ~~65m~~ 75m of a player, which is a "safe zone". Players that split up can each have a patrol spawn on them.

If the closest map edge is less than ~~65m~~ 75m away, enemies can't spawn targeting that player at all.

If it is more than ~~65m~~ 75m away, then enemies will spawn from the direction of the closest map edge. The way to prevent this is to have one player stand at the end of another player's safe zone, linking the safe zones together, until someone's safe zone overlaps the map edge.

If you don't overlap the zones then someone could wind up with a patrol spawning in the gap between safe zones. I think. I haven't had to chain zones really. In practice, most often someone just has to stand at extract and then someone else has to move towards the map edge.

This is usually easier to do before calling extract.

https://youtu.be/xXr-72xMtSY?si=x0NpjTUWGswqgIWJ approx 2:45 for a diagram