Call of Duty 4 introduces the concept of “challenges” into the series, having you perform certain tasks or do something multiple times in order to get a reward or unlock something in the game.
Looking at the logs, it seems that many people are looking for details on the humiliation challenges in CoD4.
- AirBourne -
XP: 250 Points
Unlocked Level: 42
Get a 2 kill streak with bullets in midair
- Multi-Frag –
XP: 250 Points
Unlocked Level: 42
Kill at least 2 enemies with a frag grenade
- CarpetBomb -
XP earned: 250 Points
Unlocked level: 42
Kill 5 enemies with a single airstrike
- MG Master -
XP earned: 250 Points
Unlocked level: 42
Get a 5 kill streak while mounted on a machine gun
- Slasher -
XP earned: 250 Points
Unlocked level: 45
Get a 3 melee kill streak without dying
- Multi-C4 -
XP earned: 250 Points
Unlocked level: 45
Kill 2 enemies or more with a single C4 pack
- Hot Potato I -
XP earned: 50 Points
Unlocked level: 45
Kill 1 enemy with a thrown back grenade
- Hot Potato II -
XP earned: 100 Points
Unlocked level: 45
Kill 5 enemy with a thrown back grenade.