Call of Duty 4: Modern Warfare - Achievements

Achievements:
Complete the following achievements to unlock Xbox Live Gamerscore points.

Make the Jump 20 points: Infiltrate a cargo ship.
Earn a Winged Dagger 20 points: Complete 'F.N.G.'.
Win the War 40 points: Complete the game on any difficulty.
Dancing in the Dark 20 points: Kill the power.
Save the Bacon 20 points: Protect 'War Pig', the Abrams tank.
Death From Above 20 points: Operate an AC-130 gun ship.
Wrong Number 20 points: Find Al-Asad's safehouse.
Piggyback Ride 20 points: Carry Cpt. MacMillian to safety.
Desperate Measures 20 points: Corner Zakhaev's Son.
Look Sharp 20 points: Find 15 enemy intel items.
Eyes and Ears 20 points: Find 30 enemy intel items.
Down Boy Down 20 points: Survive a dog attack.
New Squadron Record 20 points: Complete the cargo ship mockup in less than 20 seconds.
Rescue Roycewicz 20 points: Save Pvt. Roycewicz on the stairs.
Your Show Sucks 20 points: Destroy all the TVs showing Al-Asad's speech.
Man of the People 10 points: Save the farmer.
Straight Flush 20 points: Kill 5 enemies with one shot while in the AC-130 gunship.
Ghillies In The Mist 20 points: Complete 'All Ghillied Up' without alerting any enemies.
Mile High Club 20 points: Sky dive to safety on Veteran difficulty.
No Rest for the Weary 10 points: Stab an injured crawling enemy.
Deep and Hard 90 points: Complete the game on Hardened or Veteran difficulty.
The Package 40 points: Complete 'Crew Expendable' on Veteran difficulty.
The Rescue 40 points: Complete 'Blackout' on Veteran difficulty.
The Search 40 points: Complete 'Charlie Don't Surf' on Veteran difficulty.
The Bog 40 points: Complete 'The Bog' and 'War Pig' on Veteran difficulty.
The Escape 40 points: Complete 'Hunted' and 'Death From Above' on Veteran difficulty.
The First Horseman 40 points: Complete 'Shock and Awe' on Veteran difficulty.
The Second Horseman 40 points: Complete 'Safehouse' on Veteran difficulty.
The Shot 40 points: Complete 'All Ghillied Up' and 'One Shot, One Kill' on Veteran difficulty.
The Third Horseman 40 points: Complete 'Heat' and 'The Sins of the Father' on Veteran difficulty.
The Ultimatum 40 points: Complete 'Ultimatum', 'All In', and 'No Fighting in the War Room' on Veteran difficulty.
The Fourth Horseman 40 points: Complete 'Game Over' on Veteran difficulty.
Daredevil 10 points: Kill an enemy while blinded by a flashbang in the single player campaign.
Roadkill 10 points: Kill 2 enemies by blowing up a car in the single player campaign.
Bird on the Ground 20 points: Shoot down an enemy helicopter with an RPG in the single player campaign.
Four of a Kind 20 points: Kill 4 enemies in a row with headshots in the single player campaign.
Three of a Kind 10 points: Kill 3 enemies in a row with your knife in the single player campaign.

Arcade Mode:
To unlock Arcade Mode, beat the game once through on any difficulty level. Arcade Mode itself is split into two options - Full Challenge or Level Challenge - that add extra replayability to the game.

Intel Pieces:
Below is the level distribution list for Intel Pieces, which are enemy laptops full of information strewn throughout the game. There are thirty of them total. The left column is the level in question, while the right column is how many Intel Pieces can be found on that level. Levels with no Intel Pieces are excluded completely.

Level 2 - 2
Level 4 - 2
Level 5 - 3
Level 6 - 2
Level 7 - 2
Level 9 - 3
Level 10 - 2
Level 12 - 2
Level 13 - 3
Level 14 - 2
Level 16 - 2
Level 17 - 1
Level 18 - 2
Level 19 - 2

Prestige Mode:
To unlock Prestige Mode, which is a multiplayer-only mode, you must reach experience level fifty-five. Instead of capping out at level fifty-five, which is the highest level, Prestige Mode allows you to start again from level one. This can be done a total of ten times, giving you ten different icons in in-game lobbies to show your extreme achievement.