Resident Evil: Survival Unit Wesker Project: Legion Event Guide

THIS IS A WORK IN PROGRESS — WE’LL KEEP UPDATING WITH SCREENSHOTS.

If you’ve ever opened the Wesker Project: Legion event in Resident Evil: Survival Unit and thought:

“Why is everything on fire and why am I suddenly responsible for the alliance?”

Welcome. You’re in the right place.

This event isn’t just about some tasty alliance rewards. This event is about learning how alliance defense really works under pressure. Fast waves, limited failures, healing decisions, red blinking, and chaos, while figuring out who actually gets attacked and what to do (hint: not just one person).

Let’s break it down.

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What Is the Wesker Project: Legion Event?

The Wesker Project: Legion event is a wave-based alliance defense event.

• Waves of infected enemies attack repeatedly

• Sometimes the Wave will attack the entire alliance, alliance HQ, or just two specific alliance members that are online ONLY.  You should identify and send reinforcements where needed.

• Attacks come rapid-fire

• You only get 2 failures total

• The event teaches you:

  • How alliance defense works

  • How to react quickly

  • How healing units actually matter

  • Why “I’ll deal with it later” gets alliances wiped

This is a training event disguised as chaos. Lots of distractions and things happening, but if you practice and use the Wesker event, your alliance will be enpointe when the real fights happen.

Quick Targeting SummaryTL:DR

• Online-Only Waves: 7, 14, 17

• Alliance HQ Waves: 10, 20

• All-Member Attrition Waves: Everything else

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Wave 1

Enemy Type: Hunter II
Enemy Level: Lv. 1
Enemy Count: 300
Target: Alliance Members

Screenshot shows:
Attack Target: All Alliance Members

✔️ All Alliance Members

Wave 2

Enemy Type: Hunter II
Enemy Level: Not shown
Enemy Count: 840
Target: Alliance Members

✔️ All Alliance Members

Wave 3

Enemy Type: Hunter II
Enemy Level: Lv. 3
Enemy Count: 1,271
Target: Alliance Members

✔️ All Alliance Members

Wave 4

Enemy Type: Hunter II
Enemy Level: Not shown
Enemy Count: 1,895
Target: Alliance Members

✔️ All Alliance Members

Wave 5

Enemy Type: Hunter II
Enemy Level: Not shown
Enemy Count: 2,572
Target: Alliance Members

✔️ All Alliance Members

Wave 6

Enemy Type: Hunter II
Enemy Level: Not shown
Enemy Count: 4,749
Target: Alliance Members

✔️ All Alliance Members

Wave 7

Enemy Type: Sweeper
Enemy Level: Lv. 7
Enemy Count: 3,657
Target: Specific Alliance Members Online

“Some of the alliance members currently online”

✔️ Targeting narrows reinforce the TWO alliance members online if you can.

Wave 8 

Enemy Type: Hunter II
Enemy Level: Lv. 8
Enemy Count: ~4,800 (estimated)
Target: Alliance Members

✔️ All Alliance Members

Wave 9

Enemy Type: Hunter II
Enemy Level: Lv. 9
Enemy Count: 5,885
Target: Alliance Members

✔️ All Alliance Members

Wave 10

Enemy Type: Licker β
Enemy Level: Lv. 10
Enemy Count: 7,704
Target: Alliance Headquarters

✔️ Alliance Headquarters (Lv. 2)
✔️ Single structure target — HQ must be reinforced

Wave 11

Enemy Type: Hunter II
Enemy Level: Lv. 11
Enemy Count: Not individually expanded in screenshot
Target: Alliance Members

✔️ All Alliance Members

Wave 12

Enemy Type: Hunter II
Enemy Level: Lv. 12
Enemy Count: 12,145
Target: Alliance Members

✔️ All Alliance Members

Wave 13

Enemy Type: Hunter II
Enemy Level: Lv. 13
Enemy Count: Not individually expanded in screenshot
Target: Alliance Members

✔️ All Alliance Members

Wave 14

Enemy Type: Sweeper
Enemy Level: Lv. 14
Enemy Count: 22,535
Target: Specific Alliance Members Online

“Some of the alliance members currently online”

✔️ Targeting narrows — reinforce the TWO alliance members online if you can

Wave 15

Enemy Type: Hunter II
Enemy Level: Lv. 15
Enemy Count: 38,966
Target: Alliance Members

✔️ All Alliance Members

Wave 16

Enemy Type: Hunter II
Enemy Level: Lv. 16
Enemy Count: 62,051
Target: Alliance Members

✔️ All Alliance Members

Wave 17

Enemy Type: Sweeper
Enemy Level: Lv. 17
Enemy Count: 89,972
Target: Specific Alliance Members Online

“Some of the alliance members currently online”

✔️ Targeting narrows — reinforce the TWO alliance members online if you can

Wave 18

Enemy Type: Hunter II
Enemy Level: Lv. 18
Enemy Count: 173,601
Target: Alliance Members

✔️ All Alliance Members
✔️ High-volume attrition wave — troop count matters more than individual power

Wave 19

Enemy Type: Hunter II
Enemy Level: Lv. 19
Enemy Count: Not explicitly shown in summary screen
Target: Alliance Members

✔️ All Alliance Members
✔️ Failure count increases to 1 / 2 if under-reinforced

Wave 20

Enemy Type: Hunter II
Enemy Level: Lv. 19
Enemy Count: Not explicitly shown
Target: Alliance Hq

✔️ PROTECT ALLIANCE HQ
✔️ Final wave — alliance-wide troop depth check

Final Thoughts: How to Survive Wesker Project: Legion Waves 1–20

The Wesker Project: Legion event in Resident Evil: Survival Unit isn’t about raw power alone. This fast-paced event is about understanding who gets targeted, when, and why. As shown in the wave breakdown above, most waves apply steady alliance-wide pressure, but key breakpoint waves deliberately shift targeting to online alliance members or the Alliance Headquarters, catching unprepared alliances off guard.

Waves 7, 14, and 17 punish poor online coverage, while Waves 10 and 20 test whether your alliance can coordinate fast HQ reinforcements under pressure. If your alliance plans ahead,  reinforcing the right members at the right time and protecting the HQ during structural waves, even mid-power groups can clear all 20 waves consistently. Mastering these mechanics is what separates alliances that barely survive from those that farm Legion cleanly every cycle.