The Expert Modifier is a manual buff you can activate in the vehicle modification screen after unlocking Hercules and reaching Modify Level 100.

It does not turn on automatically — you must manually press the Expert Modifier button when ready.

When activated, you gain the Super Upgrade Buff:

Super Upgrade Buff (30 Minutes)

For 30 minutes you receive:

• Up to 100 upgrade acts granting double experience (x2 EXP)

• Massive SVS point gains during modification stages

• A burst of rapid progression that can push you through multiple Modify levels

Plan ahead to take full advantage of all 100 upgrade attempts.

To maximize your gains:

Best Used on Mondays

Use the Expert Modifier on Monday, during the Modded Vehicle Boost theme under the Mod Vehicle Boost event.

This aligns perfectly with Full Preparedness, giving:

• Increased Boomer-kill rewards

• Stronger buff synergy

• The highest possible efficiency per blueprint spent

This timing gives you the best return on resources and maximizes EXP during the 30-minute buff.

To use the Expert Modifier, you must meet all of the following:

1. Unlock the Hercules Vehicle

You must have the Hercules unlocked before Expert Modifier becomes available.
Without Hercules, the button will not activate.

2. Reach Modify Level 100

Expert Modifier unlocks only after reaching Modify Level 100 with your vehicle.

3. Sufficient Resources Ready

You must have enough blueprints to push multiple levels to take advantage of the 100 discounted upgrades

4. Complete the Preparedness → Mod Vehicle Boost Path

This maximizes blueprint farming and overall efficiency before activation.

Once all requirements are met, the Expert Modifier button becomes available and can be activated manually.

Blueprint costs scale with Modify Level.

Example progress:

• Modify Level 109 → 128

• Total spent: ~150,000 blueprints

For safe preparation, save around:

200,000 blueprints

Begin serious blueprint saving around Modify Level 90:

1. Full Preparedness ➝ Mod Vehicle Boost

• Only kill Boomers

• DO NOT use blueprints yet—save everything

2. Weekly Reset Shopping

Check every week:

Black Market ➝ VIP Shop

• Buy all blueprint bundles

Black Market ➝ Glory Shop

• Buy blueprint bundles with Glory

Weekly consistency builds your stockpile fast.