Oh btw as regards the conquest events if you don`t want people spawning except at their start locations then alter the spawn points so they can only spawn there!
I did that for Ewan`s first conquest map months ago and everyone complained!
But for conquest it is the only way to ensure order and unit cohesion and that people obey the rules! Also it is almost impossible to take one spawn point from the enemy due to the constant influx of spawning enemies so that would suit your purposes rather well!