Humiliation

Airborne
Unlocked at level 42

XP reward: 250

Get a two-kill streak while in mid-air..

Multi-Frag
Unlocked at level 42

XP reward: 250

Kill two enemies with one grenade.

MG Master
Unlocked at level 42

XP reward: 250

Get a five-kill streak while on a mounted machine gun.

Slasher
Unlocked at level 45

XP reward: 250

Get a three-kill streak with the knife.

Multi-C4
Unlocked at level 45

XP reward: 250

Kill two enemies with one C4.

Hot Potato I, II and III
Unlocked at level 45

XP reward: 50, 100, 250

Kill 1, 5 and 15 enemies with a throw-back grenade.

Car Bomb
Unlocked at level 45

XP reward: 50, 100, 250

Kill an enemy by blowing up a car near him.

Backstabber
Unlocked at level 47

XP reward: 250

Kill an enemy by stabbing him in the back with the knife.

Slow But Sure
Unlocked at level 47

XP reward: 50, 100, 250

Kill an enemy while stunned by a Stun grenade.

Flashbang Veteran I, II and III
Unlocked at level 47

XP reward: 50, 100, 250

Kill 5, 10, and 25 enemies blinded by a flashbang.

Misery Loves Company I, II and III
Unlocked at level 47

XP reward: 50, 100, 250

Kill one, two, and three enemies with a cooked grenade that hasn't been thrown.

Ouch I, II and III
Unlocked at level 48

XP reward: 50, 100, 250

Kill 1, 5 and 15 enemies with a non-detonated grenade launcher grenade.

Rival
Unlocked at level 48

XP reward: 250

Kill an enemy five times in a match.

Cruelty
Unlocked at level 48

XP reward: 250

Kill an enemy, pick up his weapon, then kill him again with his own weapon.

Think Fast
Unlocked at level 48

XP reward: 250

Kill an enemy with a direct impact from a frag grenade.

Think Fast Stun
Unlocked at level 50

XP reward: 50, 100, 250

Kill an enemy with a direct impact from a Stun grenade.

Think Fast Flash
Unlocked at level 50

XP reward: 5000

Kill an enemy with a direct impact from a Flash grenade.

Return to Sender
Unlocked at level 50

XP reward: 250

Kill an enemy by destroying his C4.

Blindfire
Unlocked at level 50

XP reward: 50, 100, 250

Kill an enemy while you are blinded by a flash grenade.

Multi-Frag
Kill 2 or more enemies with a single frag grenade.

Multi-Mine
Kill 2 or more enemies with a single Bouncing Betty/Satchel Charge

Backstabber
Stab an enemy in the back with your knife

Slow but Sure
Kill 1 enemy while you are being poisoned with Tabun Gas

Rival
Kill the same enemy five times in a single match.

Cruelty
Kill an enemy, pick up his weapon, then kill him again with his own weapon.

Special Delivery
Kill 2 enemies by making a Sticky Grenade stick to one and then take out one more when it blows up.

Blindfire
Kill an enemy while you are still dazed by a Signal flare

Return to Sender
Kill an enemy by shooting their own Bouncing Betty/Satchel Charge

Oh No You Don’t
Kill an enemy by shooting a Bouncing Betty right after they plant it.

Misery Loves Company
Kill yourself and 1, 2, 3 enemies with a cooked frag grenade.

Potato Chucker
Finish off an enemy by hitting them directly with a frag grenade.

Think Fast Special
Finish an enemy off by hitting them with either a signal flare or a Tabun Gas Grenade

Car Bomber
Kill 1, 5, 15 enemies by blowing up a car next to them.

Barrel Bomber
Kill 1, 5, 15 enemies by blowing up a barrel next to them.

Hot Potato
Kill 1, 5, 15 enemies with thrown back grenades.

Gib Factory
Kill 1, 5, 15 enemies so that body parts go flying.

Coffin Dodge
Survive the blast from a Bouncing Betty 1, 5, 15 times.