When it hits
When the story calls it on the Student's run
Part of 
The Last Push, starts with 
The Last Push - Day 3.
The same wave on the other runs: Wage Slave
Who comes, and where
76 zombies: 38 door · 38 window.
Every zombie in it has ×2.76 HP, bites ×10 as hard, bites ×1.3 as often, on top of the horde setting.
At the door 38
| Zombie | How many | At once | HP each | Bite |
|---|---|---|---|---|
| Office Worker Zombie | 9 | 4 | 359 | 10 |
| Nurse Zombie | 5 | 3 | 303 | 10 |
| Barefoot Zombie | 5 | 3 | 221 | 10 |
| Worker Zombie | 4 | 3 | 552 | 20 |
| Crawler Zombie | 4 | 1 | 276 | 10 |
| Brute Zombie | 3 | 1 | 717 | 30 |
| Soldier Zombie | 3 | 1 | 607 | 40 |
| Neighbor Zombie | 3 | 1 | 248 | 10 |
| Hulk Zombie | 1 | 1 | 1,379 | 80 |
| Armored Crawler Zombie | 1 | 1 | 524 | 20 |
At the window 38
| Zombie | How many | At once | HP each | Bite |
|---|---|---|---|---|
| Office Worker Zombie | 8 | 4 | 359 | 10 |
| Nurse Zombie | 5 | 3 | 303 | 10 |
| Barefoot Zombie | 5 | 3 | 221 | 10 |
| Worker Zombie | 4 | 1 | 552 | 20 |
| Crawler Zombie | 4 | 1 | 276 | 10 |
| Brute Zombie | 3 | 1 | 717 | 30 |
| Soldier Zombie | 3 | 1 | 607 | 40 |
| Neighbor Zombie | 3 | 1 | 248 | 10 |
| Hulk Zombie | 1 | 1 | 1,379 | 80 |
| Charger Zombie | 1 | 1 | 1,103 | 60 |
| Armored Crawler Zombie | 1 | 1 | 524 | 20 |
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 | 24,253 | Tier 4 |
| Standarddefault | 32,335 | Tier 5 |
| Strong | 40,414 | Tier 5 |
| Very Strong | 48,479 | Tier 5 |
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 2043
| ID | 2043 |
|---|---|
| EventID | 52609 |
| OwnerCrisisID | 129 |
| ZombieTypeList | [9108,9110,9105,9104,9102,9109,9103,9106,9101,9107] |
| ZombieCountList | [1,1,3,3,4,4,9,5,3,5] |
| MaxAliveCount | [1,1,1,1,3,1,4,3,1,3] |
| ChargeThreshold | 0.2 |
| TargetSlotTypes | [8] |
| AttackMultiplier | 10 |
| HpMultiplier | 2.758 |
| AttackSpeedMultiplier | 1.3 |
| SpawnAnchor | ZombieSpawn_01 |
| SpawnInterval | 2 |
TowerWave 2044
| ID | 2044 |
|---|---|
| EventID | 52609 |
| OwnerCrisisID | 129 |
| ZombieTypeList | [9108,9111,9110,9105,9104,9102,9109,9103,9106,9101,9107] |
| ZombieCountList | [1,1,1,3,3,4,4,8,5,3,5] |
| MaxAliveCount | [1,1,1,1,1,1,1,4,3,1,3] |
| ChargeThreshold | 0.2 |
| TargetSlotTypes | [9] |
| AttackMultiplier | 10 |
| HpMultiplier | 2.758 |
| AttackSpeedMultiplier | 1.3 |
| SpawnAnchor | ZombieSpawn_02 |
| SpawnInterval | 2 |