There are 15 perks to choose from in Call of Duty: Black Ops. These Perks are divided into three slots so that each player can have three of them at a time. You can purchase these perks by Cod Points once you have reached level 4. The pro versions (just like in Modern Warfare 2) can be unlocked by completing their challenges.
Call of Duty Black Ops Slot 1 Perks
This slot is for the selection of appearance of your multiplayer character. It includes following types:
#1 Light Weight
It is recommended that you use SMG with this perk as this class provides you better agility and you can run faster as compared to other forms.
You can fire faster after sprinting.
You should use this perk with the guns that run out of ammo quickly as this perk will restore your ammo once it is finished. Your ammo will be restored once you pass over the blue bags dropped by dead enemies.
You have double ammo from the start.
You can use this perk for stealth purposes as you won’t be spotted until you fire with a weapon that does not have a silencer. You will be invisible to Blackbird Killstreaks. You will visible through infrared scope though.
Enemies that target you won’t be able to see your name or a red cross-hair.
#4 Flak Jacket
This perk makes you explosive resistant. You can resist indirect explosive attacks.
This perk reduces each killstreak requirement by 1.
Allows you to choose from the Care Package weapons. You can try again if you don’t like the weapon popped up first time in the Care Package.
Call of Duty Black Ops Slot 2 Perks
This slot is for improving gun’s abilities.
You can hold your breath for longer period of time for steady aim while using weapons like snipers.
#3 Steady Aim
It increases hip fire accuracy. So if you are reluctant to use sight view, you are going to need this perk.
#4 Sleight of Hand
Reduces the reload time hence guns can be reloaded faster. Rushers and shot gunners are recommended to use this perk.
Allows you to aim down the sight faster than normal. Don’t apply on Sniper rifles.
Through this perk, you can use two attachments with your primary weapon. A silencer with red dot sight can be useful with this perk.
Call of Duty Black Ops Slot 3 Perks
This slot accommodates some random abilities.
It increases your sprint time. You can run for longer period. It is useful specially when you want to reach an advantageous location before your enemy does.
#2 Ninja Pro
You can move around with making much silence. Enemy won’t be able to hear your footsteps easily hence you can move with great ease.
#3 Second Chance
Just like “Last Stand” in COD 4, this perk provides you 10 second time on the ground with pistol to take some kills. You will die automatically after 10 seconds. You can be killed while down though.
You can revive your teammates.
You can see enemies explosives, Tactical insertions and equipment through this perk.
You can turn enemy killstreaks into friendly and also can covert the enemy Care packages into traps.
#5 Tactical Mask
Effects of flashbangs and concussion grenades are reduced on you.
Some of the Pro Abilities aren’t known to us yet. We will update them as soon as we have any information on them.