an invulnerable zone 240 units wide would be great on waypoints.. when i wp i like to alt tab out of the loading screen but sometimes i come back in and theres mobs attacking me or have killed me.
if you dont want players abuse it make it so you cant deal damage from inside the zone either.
such a small zone should prevent players from accidentally entering it when fighting nearby mobs while allowing players to port in safely.
MARATHON CIV 5 DIFFICULTY 10 STILL GOING