they are designed to improve the original perks ability's for example (these are the same perks that i use and i have them all in pro):
perk 1: scavenger-pick up and use pro:+start with extra mags
enemy and friendly
ammo.(bullets grenades
etc)
or i use
perk 1:ghost -unable to be detected by pro:+unable to be seen by motion
spy planes or Blackbirds sensors and you don't have
your name in red above your
head so its asif your invisible.
perk 2:slight of hand- reload quicker. pro:+aim down sights quicker
(except for snipers)
perk 3:hacker -allows you to see enemy pro:+you can hack it for e.g.
equiptment, sentry guns you can hack a sentry
and SAM turrets from as gun so it will attack
far as the other side of the enemy's and not your
map. team.
so i hope anyone who reads this has learnt what pro perks do and thank you for reading.
The "iron lungs" perk in Call of Duty 4: Modern Warfare, will make you hold your breath for a longer time, while you are using a sniper rifle.
Call of Duty 4 Modern Warfare: Sonic Boom Call of Duty World at War: Sonic Boom Call of Duty Modern Warfare 2: Danger Close Call of Duty Black Ops: None.
Call of Duty 4 Modern Warfare: Extreme Conditioning Call of Duty World at War: Extreme Conditioning Call of Duty Modern Warfare 2: Marathon Call of Duty Black Ops: Marathon
Call of Duty Modern Warfare 2: Scavanger Call of Duty Black Ops: Scavanger
You can move quicker with this perk.
You use the sleight of hand perk.
Overkill is the perk that lets you gave two primary weapons.
120 kills close range with the perk on
get the perk scavenger u resuply from dead enemys
You have to unlock the perk, it is called One Man Army.
No, Ghost does not appear in Call of Duty 4: Modern Warfare, but the same voice actor (Craig Fairbrass) who voiced Ghost in Modern Warfare 2 also voiced Gaz from Call of Duty 4: Modern Warfare. As for the Perk "Ghost", No It does not appear but instead "UAV Jammer" is the replacement.
The FMJ (Full Metal Jacket) attachment will increase your bullets penetration capabilities. As for what perk increases bullet damage, it is the "Stopping Power" perk.