Unlocking Nightstalker in Examination isn’t necessarily difficult, but it does require surviving for a long time, managing your resources, and staying calm when the game starts increasing the pressure. If you head into a run without a plan, it’s easy to waste ammo, lose too much health, or get overwhelmed before reaching the final objective.
After looking through the available strategies and gameplay, the biggest takeaway is that consistency matters more than speed. Picking a class you’re comfortable with, choosing a strong camping location, and knowing what happens at each milestone will make the entire process much smoother.
Here’s everything you need to know before attempting the Nightstalker unlock.
Choose the Class You’re Most Comfortable With
One of the biggest mistakes players make is selecting a class simply because someone else recommends it.
The best class is usually the one that matches your own playstyle. If you’re confident using a particular class, you’ll generally perform much better than forcing yourself into one you’re unfamiliar with.
That said, two classes stand out as particularly strong choices.
Point Man
Point Man offers excellent damage output, making it easier to eliminate enemies before they become a serious threat.
This class is ideal if you enjoy aggressive gameplay and want to clear waves quickly.
Medic
Medic focuses more on survival than damage.
Its healing abilities allow you to recover health consistently, making long runs much more forgiving.
If you’re attempting Nightstalker for the first time, Medic can be a very safe option.
Camp Above Sector 2
One strategy that repeatedly comes up is camping above Sector 2.
Many experienced players recommend this location because it provides a solid defensive position and makes controlling enemy movement much easier.
The creator also mentioned successfully unlocking Nightstalker while using this exact area.
Of course, no location guarantees success, but if you’re unsure where to defend, this is an excellent place to start.
Heal Whenever Possible
If you aren’t playing Medic, health management becomes much more important.
Use your axe whenever possible to regenerate health instead of relying entirely on medical supplies.
Every bit of health you recover naturally helps you survive the later stages, where enemies become much more dangerous.
Getting into the habit of healing whenever there’s an opportunity can make a surprisingly big difference over a long run.
Don’t Waste Your Ammo
Ammo becomes increasingly valuable the longer your run lasts.
Instead of firing constantly, make every shot count.
Sometimes a single bullet is the difference between surviving an ambush and getting eliminated.
A few simple habits can help conserve ammunition:
- Aim for headshots whenever possible.
- Avoid firing at enemies that aren’t an immediate threat.
- Use melee attacks when it’s safe.
- Save ammunition for difficult encounters.
Resource management becomes far more important than raw damage later in the run.
Staying in One Spot Has Risks
Holding a strong defensive position is usually a smart strategy, but don’t assume it’s completely safe.
According to player observations, remaining in the exact same location for too long may cause the game to send a much larger group of enemies at once.
While this behavior hasn’t been officially confirmed, many players have reported experiencing sudden waves of around ten enemies after camping for extended periods.
If you notice enemy numbers increasing rapidly, consider repositioning instead of stubbornly holding your ground.
What Happens After 50 Kills?
Once you reach 50 kills, the game begins introducing another mechanic.
You’ll occasionally be teleported to random locations, forcing you to quickly adapt to new surroundings.
This means you shouldn’t become overly dependent on a single camping spot.
Whenever you’re teleported:
- Stay calm.
- Look around immediately.
- Clear nearby enemies.
- Return to a safe position if possible.
Panicking after a teleport often leads to unnecessary damage.
Reach 250 Kills to Fight D-0
Your main objective is surviving until 250 kills.
After reaching this milestone, you’ll finally encounter D-0, the boss required for unlocking Nightstalker.
Getting to this point is usually the hardest part of the challenge, so focus on surviving rather than rushing through enemies.
How to Defeat D-0
Fortunately, the boss fight itself isn’t overly complicated.
Most of the encounter revolves around completing button prompts correctly.
Pay attention to the on-screen mechanics and avoid rushing your inputs.
Once you’ve completed this section, you’ll need to finish the fight by throwing your knife into D-0’s back.
To do this, simply press G when the opportunity appears.
Missing the timing can prolong the fight, so be ready when the prompt becomes available.
Watch Out for Additional Enemies
The D-0 encounter isn’t completely isolated.
During the fight, three additional enemies will spawn periodically.
These enemies have health similar to Lurkers, making them relatively easy to eliminate.
Landing two headshots is usually enough to take each one down.
Don’t ignore them, though. Leaving them alive for too long can quickly make the boss fight much more difficult.
Nightstalker is more of an endurance challenge than a pure skill check. The early game is fairly manageable, but as your kill count climbs, every decision starts to matter. Good positioning, careful ammo management, and staying healthy are what ultimately get you to the D-0 fight.
Once you know what to expect at the 50-kill and 250-kill milestones, the unlock process becomes much less intimidating. Stay patient, avoid unnecessary risks, and focus on surviving each wave rather than rushing kills. With a bit of practice, you’ll have a much better chance of adding Nightstalker to your collection in Examination.