I made a house and a three level skyscraper to test team missions.

They have Zombies that can't die and targets that can be reset.
There are standing and sitting zombies
House is easy
Skyscraper is harder ( More zombies hidden)
Test how fast you can enter and shoot all the zombies

prefab rules apply

They are north of spawn just follow the road.
Good Luck on your Missions

Robfly