When it hits
When the story calls it on the Warehouse Manager's run
Part of 
Lured Horde, starts with A Pack Bears Down.
The same wave on the other runs: Wage Slave, Student
Who comes, and where
58 zombies: 34 door · 24 window, over 24h.
Every zombie in it has ×1.94 HP, bites ×8 as hard, bites ×1.1 as often, on top of the horde setting.
At the door 34
| Zombie | How many | At once | HP each | Bite |
|---|---|---|---|---|
| Office Worker Zombie | 8 | 4 | 252 | 8 |
| Barefoot Zombie | 5 | 3 | 155 | 8 |
| Worker Zombie | 4 | 3 | 388 | 16 |
| Crawler Zombie | 4 | 2 | 194 | 8 |
| Nurse Zombie | 4 | 2 | 213 | 8 |
| Neighbor Zombie | 4 | 2 | 175 | 8 |
| Soldier Zombie | 3 | 2 | 427 | 32 |
| Hulk Zombie | 2 | 2 | 970 | 64 |
At the window 24
| Zombie | How many | At once | HP each | Bite |
|---|---|---|---|---|
| Office Worker Zombie | 6 | 3 | 252 | 8 |
| Nurse Zombie | 4 | 2 | 213 | 8 |
| Barefoot Zombie | 4 | 2 | 155 | 8 |
| Worker Zombie | 3 | 2 | 388 | 16 |
| Crawler Zombie | 3 | 2 | 194 | 8 |
| Neighbor Zombie | 2 | 2 | 175 | 8 |
| Soldier Zombie | 2 | 1 | 427 | 32 |
What beating it pays
A wave's total HP sets its reward tier. Each tier pays its reward, and the zombies you kill leave loot on the ground.
| Zombie Horde Intensity | Total HP | Reward |
|---|---|---|
| Weak | 11,914 | Tier 3 |
| Standarddefault | 15,857 | Tier 4 |
| Strong | 19,828 | Tier 4 |
| Very Strong | 23,778 | Tier 4 |
The game also adjusts each wave to how ready your home is (doors, defenses, supplies and how the last wave went), so the HP here is the starting point.
From the game files2
TowerWave 4015
| ID | 4015 |
|---|---|
| EventID | 62881 |
| OwnerCrisisID | 211 |
| ZombieTypeList | [9108,9104,9102,9109,9103,9106,9101,9107] |
| ZombieCountList | [2,3,4,4,8,4,4,5] |
| MaxAliveCount | [2,2,3,2,4,2,2,3] |
| ChargeThreshold | 0.2 |
| TargetSlotTypes | [8] |
| AttackMultiplier | 8 |
| HpMultiplier | 1.94 |
| AttackSpeedMultiplier | 1.1 |
| SpawnAnchor | ZombieSpawn_01 |
| DurationHours | 24 |
| SpawnInterval | 2 |
TowerWave 4016
| ID | 4016 |
|---|---|
| EventID | 62881 |
| OwnerCrisisID | 211 |
| ZombieTypeList | [9102,9109,9103,9106,9101,9107,9104] |
| ZombieCountList | [3,3,6,4,2,4,2] |
| MaxAliveCount | [2,2,3,2,2,2,1] |
| ChargeThreshold | 0.2 |
| TargetSlotTypes | [9] |
| AttackMultiplier | 8 |
| HpMultiplier | 1.94 |
| AttackSpeedMultiplier | 1.1 |
| SpawnAnchor | ZombieSpawn_02 |
| DurationHours | 24 |
| SpawnInterval | 2 |