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BO1

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Black Ops

BO72025 · TreyarchLive

BO62024 · Treyarch

Cold War2020 · Treyarch

BO42018 · Treyarch

BO32015 · Treyarch

BO22012 · Treyarch

BO12010 · Treyarch

Modern Warfare

MW42026 · Infinity WardOverview

MW20192019 · Infinity Ward

MW32011 · Infinity Ward

MW22009 · Infinity Ward

CoD42007 · Infinity Ward

Original / WWII

Vanguard2021 · Sledgehammer Games

WWII2017 · Sledgehammer Games

WaW2008 · Treyarch

CoD32006 · Treyarch

CoD22005 · Infinity Ward

CoD2003 · Infinity Ward

Other

IW2016 · Infinity Ward

Ghosts2013 · Infinity Ward

Battle Royale

Warzone2020 · Raven SoftwareLive

All games/Black Ops

Call of Duty: Black Ops

Released 9 November 2010

Treyarch

Home
BO1
Perks
Hardline

MultiplayerPerk 1

Hardline

Also in 7 games — switch version:

MW2019
IW
Ghosts
BO2
MW3
BO1
MW2

Effect

Earn killstreak rewards with one fewer kill.

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Other BO1 perks

Lightweight
Scavenger
Ghost
Flak Jacket
Hardened
Scout
Steady Aim
Sleight of Hand

Key facts

Hardline

Game: BO1
Product: Multiplayer
Slot: Perk 1

Sources

Call of Duty: Black Ops — Weapons and AttachmentsSecondary reporting
hXcHector.com · accessed 6 Aug 2026
Multiplayer weapon roster grouped by class from a community walkthrough. Identity only — no in-game statistics are recorded for these weapons yet.

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Call of Duty weapon, map, killstreak and patch data — sourced to the official publication it came from, versioned by patch, and kept separate for multiplayer and Warzone. Unverified values are shown as unverified.

Data last verified 6 August 2026 against 38 recorded sources. How we know this.

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