Title. I never used them before, and i always wondered if they are useful. Also, there is weak, and some other type i cant remember right now.
Normal respawn zones make it so you only have to change the team of the respawn zone, and keep all the respawn points in it neutral, basicly, a time saver. Weak respawn zones,... I have no idea.
I'm afraid you're wrong. Respawn zones increase the chance of spawning at a respawn point inside the zone. Weak respawn zones do the same, but don't increase the chance as much. Anti respawn zones decrease the chance of spawning in a respawn point inside the zone
So it has nothing to do with proximity to an enemy or teammate? It just has to deal with wanting guys to spawn here more than other places?
I beleive that if an enemy is in the zone, you and your allies will have a decreased chance of spawning on any point in that zone.
http://www.forgehub.com/forum/forging-101/14285-advanced-guide-respawns.html In short, they tell respawn points what to do.