Jack Krauser

Been a long time, comrade. You may be able to prolong your life, but it's not like you can escape your inevitable death, is it? Jack Krauser was a former Government Agent alongside with Leon S. Kennedy, but in 2002, he faked his death in a helicopter crash and began working for Albert Wesker. He is set to appear in Resident Evil: The Darkside Chronicles due to his picture being featured, masked in darkness, on its poster. His role in this game is yet to be identified but it is assumed it will involve his past with Leon.

Los Illuminados incident
Witness the Power!

Krauser was sent by Wesker to the Ganados' island to infiltrate the cult group Los Illuminados and steal a sample of the Las Plagas parasite (preferably a Master Plaga). Krauser was supposed to work with Ada Wong, another agent sent by Wesker, however, they don't see eye to eye; Krauser believing that Ada is untrustworthy and may betray Wesker. Krauser is ordered to assassinate Leon but fails due to Ada Wong's intrusion, thus increasing his paranoia about her.

In the morning, Leon battled Krauser again in a large ruins area where Krauser appears and disappears, shooting Leon all he could with a TMP and throwing flash grenades while Leon had to gather three insignias to open a gate, where he could escape the Ruins. After Leon got the second insignia, Krauser locked him in the tower with him. C4 charges were set to 2 minutes whilst Krauser's arm mutated into a large bladed claw that was completely bulletproof and dealt massive damage. He used it to shield his upper torso, while his legs remained vulnerable to attack.

Defeated and unconscious by Leon, the third insignia -in which he had upon his person- was taken by Leon as he escaped the area before Krauser's C4 would detonate. In fact, Krauser survived this. After Leon and Ada met near the prison, Ada proceeded to the tops of the buildings where she met Krauser for the last time. He was determined to kill Ada, jumping from top to top of the towers, hoping to slow her down. Although powerful, he was no match for Ada's arsenal and was finally killed for good.

Prior to Mutation
Krauser is an excellent knife-fighter, and along with the same training as Leon, knows how to use a wide variety of firearms and heavy ordinance. Compared to Leon, he has a more Rambo-esque fighting style: utilizing surprise attacks from behind cover; long-range longbow shots; simple-but-effective traps such as robotic spiders with TNT strapped to them and small flying robots equipped with full-auto armaments; more physically-oriented, close-range combat; and especially the luring of his enemies into the environment to pull off any one of the aformentioned tactics. He is also capable of executing inhumanly powerful jumps, although it is probable this was attributed to his infection with Las Plagas; during the interactive knife-fight cutscene and the fight within the ruins, he displays the ability to pull off powerful back flips to reach platforms or ledges more than six feet from the ground.

Post-Mutation
When mutated, Krauser's speed, endurance, defensive capabilities and killing potential are increased dramatically. He sports a gigantic bladed arm not only capable of being utilized for cleaving opponents in two, but also capable of 'unfurling' into a fan-like metallic shield, protecting him from the knees up like a personal riot shield. He is also capable of dodging bullets with his enhanced lightning-quick reflexes, and his endurance has also been greatly increased. With the gigantic 'wing', he is also able to execute powerful forward charges, the action of which looks like he's being propelled by jets.

The Mercenaries
In the "The Mercenaries" minigame of Resident Evil 4, Krauser is unlockable. To unlock him, one must get a Four Star Rating on Salazar's Castle level.

Krauser is powerful in The Mercenaries. He wields a powerful bow which has a high probability of a one-hit kill to the head and body as well as the mutated arm which he used in his fight against Leon. It can transform when it is glowing red. The arm can only attack once when mutated, but can destroy any enemy in one hit with a violent explosion, even the Special Bosses such as Super-Salvador and the Garrador. This massively powerful attack also launches Krauser about 15 feet forward, and has a small area affect; in that, even if the arm doesn't physically touch a Ganado, any Ganado within a meter or so will still explode. Krauser has two special moves. When the enemy is hit in the head and staggering, he unleashes a powerful set of kicks that almost always decapitate the foe. Similarly, if an enemy is on their knees, Krauser can knee the target in the face, almost certainly severing the target's head. However, it is very rare that the player will use his takedowns as Krauser's bow instantly kills most enemies with one head shot and and taking only two body shots on most enemies. When knocked down by a foe, Krauser peforms a getup move that is different from the other characters, causing him to move backward. Krauser is the only character with a full 10 bars of health, and can take upwards of 7 or 8 hits before succumbing.

Krauser, although being one of the most powerful of the characters, he does have some weaknesses. First of all, his grenades are all Flash Grenades. Furthermore, Krauser's arm takes over a minute to regenerate, and without his arm being ready, he lacks the power to control groups, unless he can use his flash grenades to stagger a group, and then unleash a flurry of kicks. Also, although Krauser is extremely fast, when injured, he is quite a bit slower, so those who rely on his speed will find their advantage shattered. Krauser's bow also needs to be reloaded after every shot meaning he can't keep a constant bead on his enemies nor can he follow them very well, being as he aims very slowly. Krauser can fire his bow slightly faster if the player skips the reload animation; by rapidly release and then depress the aim button, Krauser will level his bow faster than if the player had kept the button held; however, Krauser loses his aim, and the bow will be aimed at the neutral position again.

Trivia

 * Krauser's mutated arm bears a resemblance to the Devil May Cry sword, Sparda.
 * Of all the antagonists in Resident Evil 4, Jack Krauser is the only 1 to make an appearance in all game modes,Main game, The Another order (Separate Ways), Ada the spy (Assignment Ada) and the Mercenaries.
 * To kill Krauser in ten sec or so, when he kneels to the ground, knife him, quick. Repeat until he dies