Instructions
Wake up a teammate at least 50 times to level up your Quick Recovery skill. This will decrease the time needed to arouse an unconscious player. Level up this skill by repeatedly shooting your teammate with the stun gun. Repeat this at least 50 times.
Use any handgun as much as possible to improve the Handgun Mastery skill. As long as you hit or kill an opponent, you will gain points toward leveling up this skill. When you level up, your reload time will decrease and accuracy will increase.
Run as much as possible to improve your Fast Moving skill. As long as your character is in a running animation, you will gain points toward leveling up. This skill will dramatically improve the character's running speed and will serve useful in hit-and-run tactics.
Use the shotgun as much as possible to increase your Shotgun Mastery skill. As long as you hit or kill an opponent, you will gain points toward leveling up this ability. It will increase your accuracy and decrease reloading time.
Use your knife as much a possible to increase your Knife Mastery skill. As long as you hit or kill an enemy with your knife, you will gain points toward this ability. It will allow you to swipe with your knife even while moving. Normally your character can only swipe with a knife while standing still. This skill allows you to evade attacks will still striking.
Use your close quarter combat attacks as much as possible to improve your CQC Mastery skill. As long as you punch or kick an opponent, you will gain points toward this ability. It will allow you to choke an opponent unconscious. Then, you can shoot or attack them while they are on the ground, which allows for an easy victory.