Consumed 10 consecutive fruits

Kill 20 attack dogs with a knife.

Get a kill with each type of handheld gun, explosive and launcher in the single player campaign.

Destroy all the TVs showing Al-Asad's speech.

Find 30 enemy intel items.

Complete any level using only the knife to kill enemies.

Kill 3 enemies in a row with your knife in the single player campaign.

Stab an injured crawling enemy.

Complete 'Game Over' on Veteran difficulty.

Complete 'Ultimatum', 'All In', and 'No Fighting in the War Room' on Veteran difficulty.

Corner Zakhaev's Son.

Find and use the hidden cache in 'Heat'.