@Eman3223 When it comes to GW pvz (missions against walkers/zombies), type of spawns are not dependant on sectors - there could be pile spawns or threat counter spawns in any GW sectors.
Spawn depends on the type of pvz:
KTTW (kill the tough walker) missions will always be threat counter, no pile spawns. KAW (kill all walkers) will never have additional spawns.
SFC (search for clues), GTE (go to exit), and KWAE (kill walkers and exit) missions could be either threat counter OR pile spawns, but not both. Currently there's no way to predict before starting the mission.
Answers
When it comes to GW pvz (missions against walkers/zombies), type of spawns are not dependant on sectors - there could be pile spawns or threat counter spawns in any GW sectors.
Spawn depends on the type of pvz:
KTTW (kill the tough walker) missions will always be threat counter, no pile spawns.
KAW (kill all walkers) will never have additional spawns.
SFC (search for clues), GTE (go to exit), and KWAE (kill walkers and exit) missions could be either threat counter OR pile spawns, but not both. Currently there's no way to predict before starting the mission.
FuriousMoldovan's NML Glossary & Guild Wars Difficulty Guide