Batman: Arkham City is the sequel to the award-winning Batman: Arkham Asylum. The game takes place one year later, when the derelict "Arkham City" area of Gotham has been turned into a massive prison for criminals and psychopaths, with security provided by a PMC called "TYGER." When a speech by Bruce Wayne regarding closing Arkham City ends in his capture by the mysterious Hugo Strange, he, as Batman, must discover what Hugo's plans are and end them.
The game features new gadgets, Catwoman as a playable character, more challenging puzzles and additional optional missions. Mark Hamill returns as the voice of Joker in this sequel.
The following weapons can be seen in the video game Batman: Arkham City:
Two-Face uses two Sphinx 3000 pistols, erroneously described in-game as .45s, when he is first seen in the courthouse. Joker is later seen also using one of these pistols, and Gotham City Police officers are shown holding them in the game's ending.
Inglis Hi-Power
An Inglis Hi-Power is seen in silhouette on posters near the central "Restricted Area" of Arkham City.
Remington 870
The Remington 870 shotgun with pistol grip seen in Batman: Arkham Asylum returns, and is seen in the hands of gang members, usually during stealth sections.
"Assault Rifle"
Fictional AR15-pattern rifles are used by criminals, police, TYGER soldiers and members of Aaron Cash's Medical Protection Team. These weapons are incorrectly shown with the right side the same as the left, meaning they have no ejection port or forward assist. They appear to be loosely based on the Noveske Rifleworks Diplomats seen in The Expendables, even featuring a rather exaggerated version of the Vltor VIS-1 upper's handguard. They also feature a slightly altered "compromise rail", which is a optional attachment made for the G36 family of rifles. According to Penguin they fire 100 rounds a minute and are so inaccurate you don't even need to try.
Heckler & Koch G36KV
While the rifle model in the game has changed, the icon shown in Detective Vision mode when looking at enemies armed with rifles is still the Heckler & Koch G36KV from the first game.
Colt M4A1
Members of the TYGER PMC sent to apprehend Batman were shown using what appeared to be M4A1 rifles in the "Hugo Strange" trailer. These were replaced with the fictional rifle in the final game, though parts of this trailer are used in the animated icon for the game on the PS3 and Xbox 360 dashboards.
IMI Tavor TAR-21
Snipers in the game use a modified TAR-21 rifle with a massive, silly barrel extension which apparently turns it into a .50 calibre rifle without changing the 5.56mm magazine. This is an improvement on the preview screenshots, however, which had Batman's "Detective Vision" identify it as a "120mm sniper." When used by regular enemies, they have red visible laser sights with the beam coming out of the barrel (!) that make a "laser" sound when the sniper is targeting Batman. The sniper Deadshot also uses the modified TAR-21 in addition to his four fictional pistols, despite the game acting like his rifle is extremely distinctive. Penguin claims that they can "blow a single hair off a man at 1000 yards" and if aimed lower there won't even be a head left.
Steyr AUG
A Steyr AUG is shown on posters throughout Arkham City in the hands of a PMC soldier. It is shown with an extended barrel and incorrectly has a magazine added forward of the grip and a handguard added to the barrel.
Milkor MGL Mk 1S
A Milkor MGL Mk 1S is used by Two-Face in the E3 2011 video, and is used in Batman's campaign by Penguin; Two-Face only uses it when fighting Catwoman at the end of her missions. Like the TAR-21, the barrel has been extended, though not by nearly as much.
Mk 2 hand grenade
Armed thugs sometimes use Mk 2 hand grenades to flush the player character out of cover.
TS-50 Anti-Personnel Mine
A land mine resembling a flattened-out and oversized Italian TS-50 anti-personnel mine with added flashing lights in case anyone has trouble finding it is used by enemies in the later areas of the game.
M230 Chain Gun
Patrolling TYGER PMC helicopters seen over the city are armed with M230 Chain Guns on their undersides, equipped with searchlights. TYGER also use M230s rigged as sentry guns to protect fixed locations.
Unknown Firearm
One of the first screenshots for the "Harley's Revenge" DLC shows her with one of the more stranger firearms of Arkham City.