Reach Sergeant (Level 10) in Multiplayer while playing online.

Kill Hermes and acquire his Boots

Finish the Game on Easy Without Changing the Difficulty

Defeat 50 Enemies in a Row Without Auto-Reloading

Kill 30 Enemies with the PAK-80

Kill 30 Enemies with the M9

Kill 30 Enemies with the SAS-12

Play in the Swimming Pool on the Cruise Ship

Kill 30 Enemies with the KAL-7

Find 40 Treasures

Defeat 50 Enemies with Hand-to-Hand Combat

Successfully Counter all of a Brute's Damage-Giving Attacks

Defeat 20 Enemies with Hand-to-Hand Combat