Season 2 of Deadliest Warrior was announced via Twitter with a teaser image showing a Ballistic Gel torso behind a podium. A teaser video was made available to members of the official fansite, Warrior Den, and previewed some of that season's modern weapons. It premiered April 20, 2010, at 10 pm ET.

Episode 10: SWAT vs. GSG 9 SWAT GSG 9 Team Jon Darrah (9-year SWAT veteran)Steve Gordon (metro SWAT operator) Michael Nagel (former German infantryman)Damien Puckler (GSG 9 combat instructor) Weapons Benelli M4 Shotgun, LWRC PSD, Remington 700 Sniper Rifle, Taser Shockwave Remington 870 Shotgun, HK G36, HK PSG1 Sniper Rifle, Stingball Grenade Armor Kevlar vest, combat helmet Kevlar vest, Gefechtshelm M92 Statistics Warrior: 5'11", 190 poundsGear: 60 pounds Warrior: 6'0", 200 poundsGear: 60 pounds

This episode featured the first four-on-four squad-on-squad battle instead of the traditional five-on-five, and the first not to have melee weapons. SWAT is one of only three warriors to receive the edge in 3 out of 4 weapons match-ups, the others being the Maori Warrior in season 1 and Vlad the Impaler later in the season. The SWAT leader also claimed the most human kills in a four-on-four squad match, with three kills.

+ Simulation results SWAT Kills GSG 9 Kills Notes Short Range Weapons Benelli M4 Shotgun 80 Remington 870 Shotgun In the first test, the SWAT team destroyed its six targets in less time. In the second test, the GSG 9 was far more devastating and accurate, destroying the target's head in 17.35 seconds. The Benelli was also accurate, delivering a kill in every shot, and making it in 11.25 seconds, while the Remington 870 had a slower cycle. The advantage went to the SWAT team's Benelli since it finishing their target during both tests in less time. Mid Range Weapons LWRC PSD Rifle 227 HK G36 136 Each team ran a simulation where the mission was to rescue a hostage from three enemies, while also securing three bystanders. The GSG 9 experts completed their simulation in 1 minute and 27 seconds and the SWAT team completed the course in 1 minute and 20 seconds. The SWAT's LWRC-PSD utilized higher caliber bullets, and therefore killed with much more damage in less time; earning it the advantage in this category. Long Range Weapons Remington 700 Sniper Rifle 271 HK PSG1 Sniper Rifle 205 The SWAT team's Remington 700 destroyed the skull of its target by shooting it through the left eye. The GSG 9's HK PSG1, however, was able to kill its target by shooting it through the right eye, and was more accurate in hitting its target by a fraction of an inch, earning it the advantage in long-ranged weapons. Special Weapons Taser Shockwave 0 Stingball Grenade 0 The GSG 9 stingball grenade's rubber balls made numerous indentations on a wall, none of which were judged to be damaging or fatal. The SWAT team's Taser shockwave is composed of 36 Tasers mounted together. At 25 feet, it managed to hit all five targets while only deploying half of its arsenal. During a test of a single Taser, it was able to bring down its live target without causing any significant injury. Since the Taser was accurate and could be used more than once, while stingball grenade carried a risk of collateral damage when deployed, the Taser won the special weapons advantage. The Taser was the first and only weapon on Deadliest Warrior to be tested on a living subject. Totals 578 422

Reenactment The battle begins with the SWAT team's armored van parked near a series of abandoned buildings and parked cars. The squad's captain spots four GSG 9 members approaching from the other side of the area before splitting up. Three of the SWAT members head off in different directions while the leader sets up his Remington 700 sniper rifle. A member of the SWAT team readies a taser shockwave in one warehouse and hides in an adjoining room. A GSG 9 member enters the warehouse, gun in hand, and slowly gets closer to the taser, at which point the SWAT member activates it. The taser shockwave shoots out hooks that latch onto the GSG 9 member and electrically shock him.

A nearby GSG 9 hears the commotion and enters the warehouse, where his teammate is on the floor, dazed. He follows the cord connecting the taser to the remote control into the next room, where the SWAT member tries unsuccessfully to shoot the GSG 9 with his LWRC PSD, but misses and is shot himself with the HK G36. The GSG 9 member then removes the taser hooks from his teammate. The two exit the building but are spotted by the SWAT team captain, who shoots one with the sniper rifle. The other flees onto the roof of a building, where he sets up his HK PSG1 sniper rifle.

Meanwhile, a SWAT team member is chased into a building by two GSG 9 members. He shoots at them from inside with his Benelli M4 shotgun. One of them tries to fire back with his Remington 870 shotgun, but misses, then throws a Stingball Grenade into the room. It explodes, knocking the SWAT member to the floor. The GSG 9 member enters to dispatch him and finds an exit, only to be shot by a SWAT member and his LWRC PSD. That SWAT member is then shot by the GSG 9 member on the roof, who is, in turn, picked off by the SWAT team captain. The captain then runs for cover, with the last GSG 9 member not too far behind. The GSG 9 member slowly approaches the SWAT van with his Remington 870 shotgun but finds the van empty. The SWAT captain, hiding in a parked 4X4 steps out with his Benelli M4, shooting first and killing him.

Winner: SWAT

Episode 11: Attila the Hun vs. Alexander the Great Attila the Hun Alexander the Great Team Robert Borsos (mounted weapon specialist)Sean Pennington (ancient combat specialist) Peter Van Rossum (sword and shield champion)Kendall Wells (bladed weapon specialist)Rashad Evans (former UFC champion) Weapons Sword of Mars, lasso, Hunnic composite bow, Scythian axe Kopis, xyston, gastraphetes, ballista Armor Leather lamellar, turban, steel shield Bronze cuirass, Chalcidian helmet, bronze shield Statistics Years active: 406-453 ADWarrior: 5'6", 145 pounds Years active: 340-323 BCWarrior: 5'7", 155 pounds

This episode is the first to factor combat on horseback into a warrior's combat skills and effectiveness. Alexander the Great's team also went through Pankration trials. Rashad Evans was able to easily crush the trachea and fracture the skull of a ballistic gel torso with only his elbow and knee, respectively. The reenactment was the first to feature multiple warriors on each team in an ancient match, rather than the battle being one-on-one.

+ Simulation results Attila the Hun Kills Alexander the Great Kills Notes Short Range Weapons Sword of Mars 117 Kopis 120 When both were tested on horseback (on both stationary and moving targets), the Sword of Mars dealt four killing blows in 34.5 seconds. With the head targets, it caused a decapitation on one meat "neck" and cut through the cervical muscles to the spinal cord on the other. On the slabs of cattle meat, the Sword of Mars managed to slice four inches through the ribs, which are two to three times thicker than human ribs, causing two death blows. The kopis completed the test in 25.75 seconds; it decapitated one meat "neck" and cut through the spinal cord on the other. However, the kopis failed to penetrate the cattle ribs, inflicting a collapsed lung at most. The Sword of Mars received the edge due to killing power. Mid Range Weapons Lasso 30 Xyston 225 The xyston was tested against a pig carcass on a zip-line to simulate the weapon's use on horseback. It impaled the pig at 10 feet/second with almost no resistance. The xyston was also tested from horseback on an armoured carcass and was able to puncture through the front plate, impale the carcass through the sternum, and still puncture the back plate. The lasso could cause a hangman's fracture of the neck and crush the trachea, but was still determined to not be a certain kill. The edge was given to the xyston due to its killing power. Long Range Weapons Hunnic composite bow 354 Gastraphetes 52 Both were tested on two moving targets. The composite bow was used from horseback, and demonstrated both speed and accuracy. The gastraphetes was tested on foot and could not match the speed or the accuracy of the composite bow. The edge was given to the composite bow. Attila's hunnic composite bow scored the most kills of any pre-gunpowder projectile weapon of the first two seasons. Special Weapons Scythian Axe 95 Ballista 7 The ballista was fired at a silhouette target of a mounted Hun at 200 yards, and hit its target at 198 mph. When tested against a formation of enemies, it caused instant kills by impaling them. The scythian axe was tested against an unprotected ballistic gel head, tearing the back of the skull completely open, decapitating the skull, and severing the spinal cord with multiple strikes. The velocity of the scythian axe was measured at 69 mph. However, the axe failed to penetrate Alexander's iron helmet, and could only strike the helmet with roughly 20 pounds of force per square inch; 81 pounds per square inch being the minimum amount of force required to inflict a lethal skull fracture. The edge went to the ballista because of its range and killing power despite having a lower kill count than the axe. Totals 596 404

Reenactment 11 The battle begins with two of Alexander's men pushing a ballista towards a ruined city, with Alexander himself behind on horseback. Inside the city, Attila and two men sit, eating a meal, and are made aware of the soldiers approaching when nearby birds fly off, startled by the sound of the ballista being cranked. Alexander's men load and fire the ballista, killing one of the Huns. Attila and his men watch as Alexander, holding a xyston, and his two men, one with a gastraphetes and the other a kopis, run down the small hill toward them. Attila mounts his horse and takes up a bow.

The man with the gastraphetes arrives first, but one of the Huns kills him with his own bow. Alexander charges the Hun with his xyston. Attila draws his bow and fires at Alexander, but the bronze cuirass shatters the arrow. Alexander impales Attila's bowman with the xyston, then catches the lasso Attila throws at him. He pulls Attila off his horse and, after a struggle, Attila does the same to him. Alexander takes the shield off his fallen bowman while Attila rushes him, scythian axe and shield in hand. Alexander knocks Attila's shield from his hands with a kopis.

Attila falls back, avoiding the sword Alexander thrusts at him, before puncturing Alexander's bronze shield with the pick side of the axe. Alexander discards the shield as Attila draws the Sword of Mars. They cross blades, with Attila cutting Alexander's right arm and causing him to drop his kopis. Attila charges Alexander, who throws him to the ground. The two start fighting with their bare hands. Attila spots his sword on the floor and scrambles to retrieve it. Alexander grabs his leg and tries to pull him away from the sword, but Attila kicks him in the face. He tries once again to grab his sword and succeeds. Alexander approaches Attila and is stabbed through the neck.

Winner: Attila the Hun

Episode 12: Jesse James vs. Al Capone Jesse James Al Capone Team Joey Dillon (champion gunslinger)J. W. Wiseman (sharpshooting expert) Meyer Lansky II (Mafioso descendant)Johnny Lew Fratto (Capone authority) Weapons Bowie knife, Colt revolvers, Winchester rifle, pistol whip Stiletto, Tommy gun, pineapple bomb, brass knuckles Armor Statistics Years active: 1866–1876Members: 4–8Crimes: Bank robbery and murder Years active: 1922–1931Members: 10–20Crimes: Bootlegging and murder