When a perk becomes pro it adds an extra ability to the perk. For example when you get Sleight of Pro you aim faster down the sight (Good for quick scoping), and you still have the original ability along with the pro one.
the perks can go from the normal version and the pro version which has an extra perk within the perk
No, i think modern warfare 2 is better because there are new weapons and perks, and most importantly, silenced snipers.The answer to the question is more about opinion.Modern Warfare 2 does have better weapons and perks, but some of the perks in CoD4 are needed.
With commando pro, you get both commando and commando pro in one perk when you use it. It's basically two perks in one.
New perks and weapons
The Pro version of the MW2 perks give you additional bonuses. Examples: Commando: Farther Melee Distance Pro: No Falling Damage Sleight of Hand: Faster Reload Pro: Faster ADS (Aim Down Sights) Hardline: Requires 1 less for Killstreak Pro: 1 less for Deathstreak For the full list check here: http://www.360maniac.com/2009/11/05/modern-warfare-2-pro-level-perks-list/
The following are all of the "perks" in Call of Duty 4 Modern Warfare 2"... Tier 1 Perks: Marathon, Sleight of Hand, Scavenger, Bling, One Man Army. Tier 2 Perks: Stopping Power, Lightweight, Hardline, Cold-Blooded, Danger Close. Tier 3 Perks: Commando, Ninja, SitRep, Steady Aim, Scrambler, Last Stand.
Call of Duty: Modern Warfare 2 has new weapons, maps, perks and kill streaks. It will also have a Special Ops mode where you can play missions solo or with a friend.
bling pro allows for your secondary weapon to also have 2 attachments
You have to get Sleight of Hand Pro
ACR and Desert Eagle Sleight of Hand
When you prestige on modern warfare 2 you lose all your weapons, perks, classes, challenges, and I think killstreak rewards(but I'm not sure). You keep your titles, eg.The Avenger etc. And you keep your emblems.
I am trying to find a easy way to unlock all pro perks I already have some pros but these r the ones i need OMA pro Hardline pro Danger close pro Steady aim pro SCRAMBLER pro Sit rep pro Last stand pro if u find easy ways 2 unlock these answer me back PPPPPPPPPPPPLLLLLLLLLLLLLEEEEEEEEEEEEEAAAAAAAAAAAASSSSSSSSSSSEEEEEEEEEEE