Call of Duty: Modern Warfare II

Kill the enemy in the porta-potty.

Kill gassed or blinded enemies using a Molotov, Semtex and Frag in 'Prison Break'.

Shoot three enemies while underwater in 'Wetwork'.

While affected by one Flashbang, kill two enemies in the Campaign or in Co-op.

Find 20 intel fragments in Co-op.

Open three safes in the Campaign.

Reach the penthouse in 'El Sin Nombre' without killing anyone or triggering the alarm.

Rescue the hostages in 'Countdown' without the enemies firing their weapons.

Reach the barge without being seen in 'Wetwork'.

Complete 'Low Profile' without triggering any Alarms.

Never trigger the alarm in 'Recon by Fire'.

Finish 'Alone' without firing a gun.

Complete the CCTV sequence in four minutes.

Reach Price using the first vehicle you hijack.

Earn at least one Star in Co-op.

Shoot all the targets in the training area in 'Ghost Team'.

Finish the Campaign on any difficulty.

Drive five vehicle types in 'Violence and Timing'.

In 'Dark Water' advance 90 meters towards the front of the ship without touching the deck.

Earn three Stars in 'Low Profile'.