What are all of the Pro perks in Black Ops?

Question

In Call Of Duty Black Ops, what are all of the "pro" perks?

For instance, lightweight pro is no falling damage. What are the rest?

Answer 1

Source (no longer up): http://www.codblackopsblog.com/call-of-duty-black-ops-perks-list/

Tier 1

• Lightweight Pro: No falling damage.
• Scavenger Pro: Doubles your starting ammo with extra magazines and replenishes tactical grenades.
• Ghost Pro: Undetectable by aircraft, Infra-red, and Sentries. The enemy won’t see your name or a red crosshair when targeting you.
• Hardline Pro: Get a second chance on the result of care packages.
• Flak Jacket Pro: Extra fire resistance and reset fuse when you toss back grenades.

Tier 2

• Hardened Pro: Bullets do extra damage to aircraft and Turrets. Reduced flinch when shot at.
• Scout Pro: Switch between weapons faster.
• Steady Aim Pro: Quicker aiming after sprinting and quicker recovery from knife lunge.
• Sleight of Hand Pro: Faster aiming down sights with non-scoped weapons.
• Warlord Pro: Start with one extra lethal and tactical grenade (except smoke / Willy Pete)

Tier 3

• Marathon Pro: Unlimited sprint.
• Ninja Pro: Louder enemy footsteps, makes you completely silent.
• Second Chance Pro: Survive longer and teammates can revive you.
• Hacker Pro: Booby trap enemy Care Packages and turn enemy killstreaks and equipment friendly. Makes you invisible to enemy motion sensors.
• Tactical Mask Pro: Reduces the effects of flashbangs and concussion grenades. Reveals the location of a flashed or stunned enemy.