Days 6-10. 3 waves, each starting at 12:00.
No crises in this tier.
Starts with 
Endless: The Last Delivery Box.
Each wave pays its kind's pack from Endless rewards, tiers 1-4 when it ends.
Waves
3| Day | Starts | Lasts | Wave | Zombies | Health | Attack | Sends |
|---|---|---|---|---|---|---|---|
| 7 | 12:00 | 8 h | Regular | 14 | ×2 | ×2 | All but Armored Crawler Zombie, Charger Zombie |
| 9 | 12:00 | 12 h | Regular | 9 | ×2 | ×2 | Office Worker Zombie, Soldier Zombie, Brute Zombie, Nurse Zombie, Barefoot Zombie, Crawler Zombie, Charger Zombie |
| 10 | 12:00 | 18 h | Final | 24 | ×2 | ×2 | All but Armored Crawler Zombie |
Weather
5Rolled from Endless weather, tiers 2-3.
| Weather | Chance a day | Light | Cold |
|---|---|---|---|
 Clear | 38% | 2 | 0 |
 Cloudy | 29% | 1 | 0 |
 Rainy | 17% | 1 | 0 |
 Mild Cold | 8% | 1 | 1 |
 Continuous Rain | 8% | 0.5 | 0 |
From the game files11
EndlessTier 2
| id | 2 |
|---|---|
| Tier | 2 |
| EnterDay | 6 |
| CalmDays | 1 |
| WaveClockHour | 12 |
| WaveTemplateId | 2 |
| WaveCountMul | 1 |
| WaveHpMul | 1.2 |
| WeatherPoolId | 2 |
| DronePowerMul | 1 |
| PledgeWaveTemplateId | 102 |
| BroadcastEventId | 48020 |
| WaveDayTemplates | [0,1022,0,1024,1025] |
| WaveRewardSetIds | [71053,71054,71055] |
| WaveLootGroupId | 8054 |