If you’ve been trying to unlock Nightstalker in Examination, you’ve probably realized it’s not something you earn by simply surviving a few waves. It takes patience, resource management, and knowing what to expect as the challenge gets harder.
The good news is that you don’t need a specific “meta” class or perfect aim to complete it. Most failed attempts happen because players waste ammo, stay in one place for too long, or aren’t prepared for the later stages of the challenge.
This guide explains the best strategy to unlock Nightstalker, including class recommendations, farming tips, and how to deal with the final boss encounter.
How to Get Nightstalker in Examination – Best Strategy, Tips & Boss Fight Guide
One of the biggest misconceptions is that only certain classes can complete the Nightstalker challenge.
In reality, any class is capable of unlocking Nightstalker if you’re comfortable using it.
Instead of switching to a class you’ve barely played, stick with the one you already know best. Being familiar with your weapons and equipment is far more valuable than copying someone else’s loadout.
Community Recommendation
If you’re not attempting the Golden Nightstalker challenge, many experienced players recommend using the Leader class.
Why?
- Free execute ability
- Strong melee utility
- Smooth weapon swapping during execute animations
That combination helps conserve ammunition while making fights much safer.
Best Place to Farm Nightstalker
Most players currently farm inside Sector 2.
This location has become popular because it offers two major advantages.
Easy Access to Lockers
Lockers allow you to safely recover when things become overwhelming.
Having quick access to them greatly increases your chances of surviving long sessions.
Nearby Ammo Box
Running out of ammunition is one of the fastest ways to fail the challenge.
Sector 2 gives you relatively convenient access to ammo, making it much easier to stay supplied throughout longer fights.
Save Your Ammo Whenever Possible
One mistake newer players make is shooting every enemy they see.
That’s rarely necessary.
Instead, use your Axe whenever it’s safe to do so.
Using melee attacks against weaker enemies helps you:
- Save valuable ammunition
- Reduce unnecessary reloads
- Keep enough bullets for dangerous situations
Think of your firearm as an emergency tool rather than your only weapon.
Use Lockers to Stay Alive
Health management is just as important as ammo management.
Whenever things calm down, make use of nearby lockers to recover before another large wave arrives.
Trying to push forward while heavily injured usually ends badly, especially once stronger enemies begin appearing.
Don’t Camp Forever
Although Sector 2 is considered the best farming location, standing completely still for too long isn’t recommended.
Many players have noticed that remaining in one position for an extended period causes the game to send a much larger group of enemies toward you.
Some reports suggest waves of around 10 enemies can appear at once.
Instead of permanently camping one corner:
- Hold your position for a while.
- Rotate to another nearby area.
- Return after things settle down.
This simple movement pattern helps reduce overwhelming enemy pressure.
What Happens After 50 Kills?
Once you reach approximately 50 kills, the challenge becomes noticeably harder.
At this point, you’ll begin getting teleported to random locations.
This can be dangerous if you’re caught reloading or surrounded by enemies.
When you’re teleported:
- Stay calm.
- Check your surroundings immediately.
- Clear nearby threats before trying to return to your previous route.
Panicking after a teleport usually causes more problems than the teleport itself.
The D0 Boss Fight (250 Kills)
The biggest hurdle comes after reaching roughly 250 kills.
That’s when you’ll face D0.
Unlike regular enemies, this encounter introduces special mechanics that you’ll need to complete correctly.
Step 1 – Complete the Button Prompt
During the fight, you’ll first need to finish the button press mechanic.
Pay close attention to the prompts and complete them successfully before moving on.
Step 2 – Throw the Knife
After completing the button sequence, throw your knife into D0’s back.
The default key is:
G
Missing this opportunity can prolong the fight and make things much harder.
Watch Out for Additional Enemies
The boss won’t be alone.
Throughout the fight, three additional enemies periodically appear.
These enemies have health similar to Locos.
Fortunately, they aren’t especially durable.
Landing two headshots is usually enough to eliminate each one.
Try to deal with them quickly before returning your attention to D0.
Best Survival Tips
If you’re attempting Nightstalker for the first time, these tips make a huge difference.
Stick to Your Main Class
Don’t experiment during an important run.
Use the class you’re already comfortable with.
Conserve Ammo
Use melee weapons whenever possible.
Every magazine saved early helps during the later stages.
Heal Often
Take advantage of lockers whenever you have a safe opportunity.
Don’t wait until you’re nearly dead.
Keep Moving
Camping works—but only temporarily.
Rotating around Sector 2 prevents enemy pressure from becoming overwhelming.
Prepare for Teleports
Once you pass 50 kills, always expect to be moved unexpectedly.
Stay alert.
Learn the Boss Mechanics
The D0 fight is more about mechanics than raw damage.
Practice the button prompt and remember to throw your knife at the correct moment.
Nightstalker is one of Examination’s more demanding challenges, but it rewards careful play rather than perfect mechanics. Choosing a class you’re already comfortable with, farming efficiently in Sector 2, conserving ammunition through melee attacks, and using lockers to stay healthy will carry you much further than relying on raw firepower alone.
The later stages—especially the random teleports and the D0 boss fight—are where most runs fall apart, so knowing what to expect gives you a significant advantage. Stay patient, manage your resources wisely, and focus on surviving instead of rushing for kills. With enough practice, earning Nightstalker becomes far more achievable than it first seems.