SLOTPerk 1
UNLOCK LEVELPlayer level 24
SOURCEOfficial launch guide
01
What it does
Undetectable by Enemy Callouts, UAVs, Portable Radars, and Heartbeat Sensors.
02
Where it sits in the unlock curve
Slot one is the slot most people commit to first, because the earliest Perks in it land at player level 4 — the same level Create-a-Class opens.
03
How to choose it
Perk effects change between Call of Duty entries, so a Perk that solved a problem in an earlier game may behave differently here. Test it in the firing range against the problem you actually have, rather than taking a tier list as settled.
SOURCES & LIMITS
Where this comes from
Reviewed October 21, 2026. Unlock criteria and descriptions are quoted from Activision’s own launch guide. Anything marked as this site’s judgement is labelled as such.