Bioshock Infinite is the third game in the Bioshock series, developed by Irrational Games and published by 2K Games in 2013 for the Xbox 360, PS3 and PC. For the most part it is a sequel in name only; instead of the 1960s underwater city of Rapture it takes place in an alternate 1912, where a flying city called Columbia has been constructed by a self-styled prophet named Zachary Comstock, the game taking place shortly after Columbia's secession from the United States. The player controls Booker Dewitt, a former Pinkerton agent and soldier now working as a private detective, who is hired by a mysterious benefactor to track down a young woman named Elizabeth who is being held by Columbia for unknown reasons. He soon finds himself embroiled in a civil war between the "Founders" who control Columbia and the revolutionary "Vox Populi" guerillas who seek to overthrow Comstock's dictatorial rule, and that Elizabeth may be the key to unravelling the mystery of Columbia.
Three DLC packs have been released since Infinite's success; the arena-style Clash in the Clouds and the two-part sub-story Burial at Sea. Episode 1 (released November 12th 2013) transplants Booker and Elizabeth to the underwater city of Rapture, mere hours before the New Years Riots of 1959, on the search for this Booker's adopted daughter "Sally". Episode 2 (released March 25th 2014) features Elizabeth trying to escape Rapture with Sally in tow (and things get strange from there). Both episodes of Burial at Sea include new weapons, new skins for old weapons and new "Plasmids".
An ornately engraved Colt 1851 Navy revolver is the second pistol available in the game, referred to as the "Hand Cannon" in game and the "Paddywhacker" in the trophy / achievement listing; unused text refers to it as the "Paddywhacker US5". Early footage showed it with an incorrect swing-out cylinder, but the version in the final game is instead a still-incorrect top-break design with an automatic extractor and the frame extended over the top of the cylinder. Bizarrely, the weapon still appears to have the loading lever of the percussion cap model, though it is encased in a surround which would render it useless. Booker reloads it using a speedloader which somehow causes the extractor to retract itself when the rounds are inserted, and it is shown as single-action with Booker thumb-cocking the hammer after each shot.
The same model of pistol can be seen in the hands of statues of Cornelius Slate and Zachary Comstock in the Hall of Heroes. It reappears in Burial at Sea Episode 1 and 2 with a cleaner appearance and golden decor, featuring as the first weapon in Booker's inventory in Episode 1 (seemingly standing in for the Webley from Bioshock 1). Elizabeth's animations with the weapon in Episode 2 are slower and more clunky, showing her inexperience with firearms.
A modified Mauser C96 is the first weapon received in the game and a common sight among Columbia's security forces and the Vox Populi guerrillas; it is simply called the "Pistol" in-game, while the trophy / achievement list calls it the "Broadsider"; unused text refers to it as the "Broadsider C-99". Booker receives one in a box at the very start of the game, but loses it almost immediately, dropping it as the rocket which takes him to Columbia starts up. He acquires an identical weapon after being outed as the "False Shepherd" and attacked by Columbia security forces.
The C96 model in the game is a fictional hybrid of the standard C96 and the M712 Schnellfeuer; it is semi-automatic only, but features a detachable box magazine; despite the magazine being a 10-rounder which does not project below the magazine well, it has a capacity of 12 rounds, upgradable to 18. On the left side of the weapon is a lever resembling the magazine release of a Thompson SMG, which replaces the push-button release of the real weapon, and the magazine well features ribs which serve no obvious purpose. The in-game pistol also has a short barrel, making it more like a "Bolo" model. If the player pre-ordered the game (or bought later DLC), they will receive a gold-plated version with more damage.
One of the most common weapons in the game is a heavily modified and shortened ZK-383, an early Czech SMG, with a lower angled magazine, no forestock, and an enlarged heat shield. The weapon is incorrectly referred to as the "Machine Gun" in-game and the "Triple R" (for "Rolsten Reciprocating Repeater") in the trophy / achievement list. Weirdly enough, in some upgrade stations, it'll be mistakenly referred to as the "Rolson Reciprocating Rifle", somewhat nonsensically. Booker uses the magazine as a grip, which is generally a bad idea with weapons where this is possible since it tends to cause jams and damaged magazines, but since the heat shield somehow becomes incandescent during protracted firing it is probably the safer option. The weapon has a 35-round magazine, which increases to a rather implausible 70 when the weapon is fully upgraded.
The Vox Populi version is simply called the "Repeater," and boasts increased damage but a slower rate of fire. Despite having a large MP18-style snail drum magazine, it actually has a lower capacity of just 20 rounds, and has different iron sights and a rounded charging handle that appears to be taken from a hand tool like a hole punch or screwdriver.
The Triple-R appears in Burial at Sea Episode 1 through tears to replenish ammo for the Thompson M1928A1. This seems to indicate that the weapon and its Repeater variant fire .45 ACP, but the damage and ammo box models of both say otherwise.
The Thompson (called the Tommy Gun) returns from Bioshock 1 and 2 in the Burial at Sea DLC, replacing the ZK-383 as the main sub-machine gun. Compared to its Bioshock 1 model, it's far more polished. The proportions are much better (bar the oversized barrel with absurdly large compensator which doesn't do much for the recoil), the weapon has a much cleaner appearance, a ghost ring rear sight, custom charging handle, gold decor, and a horizontal foregrip as opposed to the vertical one seen in previous games. It has a reduced magazine capacity of 35 rounds and can only hold about two magazines at any one time, so conserving ammo and saving it for when it is absolutely necessary is recommended. The words "Magazine Rapture 50 Caliber" engraved on the back side of the drum magazine, implying that this gun somehow uses .50 rounds instead of .45 ACP.
Winchester Model 1887
A Winchester Model 1887 lever action shotgun is referred to as the "Shotgun" in-game and the "China Broom" in the trophy / achievement list. The weapon has the barrel and stock sawed down and is shown with a massively oversized barrel with a top rib and flared muzzle, and a tiny magazine tube which could not possibly contain actual cartridges. The words "Memento Mori" ("remember you must die") can be seen on the side of the receiver. The shotgun has a capacity of 4 rounds by default, rising to an impossible eight rounds when fully upgraded. A gold-deccorated variant appears in the Burial at Sea DLC in both episodes. Rather oddly, it holds only two rounds in Episode 2.
The Vox Populi version, the "Heater," appears to be some sort of blunderbuss: it features an even larger barrel, is loaded one round at a time and can basically be described as firing explosions, with massive recoil and a much lower ammo limit.
The M1 Carbine is a general-use semi-automatic rifle found fairly early in the game, referred to as the "Carbine" in game and the "Huntsman" in the trophy / achievement list; unused text refers to it as the "Huntsman M1". The weapon features a postwar-style rear sight, a mirrored double-sided charging handle with an odd projection behind it which resembles the magazine cutoff of an old-model Lee-Enfield, uncomfortable-looking metal bands around the handguard, and the words "Acta Non Verba" ("actions not words") engraved on the left side of the receiver. The weapon uses an oversized M14-esque magazine which quite clearly contains 7.62mm NATO rounds instead of .30 Carbine; by default the magazine only holds eight rounds despite being a 20-rounder; this increases to a still-too-small 12 when the magazine size upgrade is purchased.
A second version made by Vox Populi rebels is available later in the game; the "Burstgun" has a default 30-round magazine (despite using the same 20-round model) and is fitted with a scope (or more accurately a magnifying lens with an X drawn on it which would be practically useless for aiming) and a machine gun-style barrel jacket. This version somehow fires in three-round bursts despite having a receiver which is identical to that of the standard semi-auto variant.
Early trailers showed a version of the Huntsman equipped with a scope and with a full-circle front sight with no sight pin, but this version seems to have been removed from the final game. Another variation appears in the Burial at Sea DLC; visually it is almost identical to the regular Carbine, with some slight modifications to fit the art deco style of Rapture, but gameplay-wise it is far closer to the Burstgun, including firing in three-round bursts.
Hybrid Mauser-Action Rifle
The only sniper rifle in the game is a hybrid of the M1903A3 Springfield and Karabiner 98k, referred to simply as the "Sniper Rifle" in game and as the "Bird's Eye" in the trophy / achievement list; unused text refers to it as the "Bird's Eye G10". It is always fitted with a scope and incorrectly uses a detachable box magazine with a capacity of just four rounds (which lacks any sort of visible magazine release). The in-game model has the barrel of a Springfield along with the front sling attachment point and a C-type pistol grip stock, but has other features from the Kar 98 including a section of exposed barrel near the front, a straight bolt handle, rounded trigger guard, and a Kar 98 rear tangent sight. Just to confuse matters further, it also has the front sight of a M1917 Enfield, and a Mossberg 144 LS-esque trigger guard.
Fictional machine gun
A fictional weapon based loosely on the Maxim or Vickers machine guns is used by the robot gun turrets found scattered throughout the game. The weapon's barrel is shown in the middle of the water jacket rather than at the bottom as on these two weapons, and the receiver is incorrect for either.
A handheld, hand-cranked Gatling Gun referred to in-game as the "Crank Gun", in the trophy / achievement list as the "Peppermill Gun", and in unused text as the "Peppermill C1878" is used by the Motorized Patriots, and can sometimes be acquired through a Tear. The weapon uses a right-side-mounted hundred-round ammunition box, though Patriots are never seen to reload it. It has no iron sight mode, nor does it have the usual option in games to pre-spin the barrels.
Fictional Rocket Launcher
A fictional crank-operated rocket launcher with a 3-round magazine called the "RPG" in game, the "Barnstormer" in the trophy / achievement list, and the "Barnstormer M43" in unused text is the game's only such weapon. Despite its status, it is not a powerful weapon and the few enemies that would warrant its use usually have some sort of resistance to it. It is also a rare weapon.
Notably, studying the model of the weapon shows it has no exhaust port, meaning Booker would be pushed over upon firing it.
Fictional Grenade Launcher
A fictional revolver grenade launcher with a 8-round magazine called the "Volley Gun" in game and the "Pig Flak" in the trophy / achievement list. Their appearance was obviously, inspired by the Milkor MGL. It is a grenade launcher with a very high rate of fire, as fast as the player can pull the trigger, making it generally useful for suppressing large groups of weaker enemies with constant explosive damage.
The Vox Populi version is called the "Hail Fire". While Volley Gun grenades explode on impact with any surface, Hail Fire grenades only explode in normal circumstances when they hit a target, otherwise bouncing off surfaces until a time limit is reached and the grenades self-detonate. Hail Fire grenades can also be detonated manually, if the player holds the trigger when firing, as the grenade automatically explodes when the player lets go of the trigger.
Remington 1858 New Army
A poster for Chen-Lin's gunsmith shows a pair of Remington 1858 New Army revolvers. The weapon is shown with a shorter-than-normal barrel, garnished the projection under the loading lever, and an incorrect Colt SAA-style 5-shot fluted cylinder.
In the headquarters of the Order of the Raven, a strange cult of enforcers in Columbia, a painting can be seen of John Wilkes-Booth pointing his Philadelphia Derringer pistol at Abraham Lincoln, with Wilkes Booth shown with a halo and Lincoln as a red-eyed devil with horns. The statue of Wilkes Booth in the room next door is equipped with a very low-detail handgun which resembles a generic semi-automatic pistol from most angles, though a hammer can be seen on its right side.
A frequently-seen poster for Columbia's "Hall of Heroes" memorial shows a US soldier in WW1-era uniform, armed with an M1903 Springfield with fixed bayonet.