Pauper's Drop: The Hooverville-like shanty which sprang up during the construction of the Atlantic Express. With long sightlines and open courtyards at the center, the Drop opens up opportunities for honest-to-gosh sniping in a way that our release maps weren't as focused around.

Dionysus Park: The single best example of the gleaming, Utopia-in-peril setting of the BioShock Multiplayer experience, Dionysus Park is an art gallery owned by Sofia Lamb. It appeared in the BioShock 2 single player component as a filth-encrusted, recently flooded garden of goop. But here in 1959, all that pain and decay have been peeled away, and it can be enjoyed in its original, golden splendor. Territory and security control feature prominently in the park's tactical terrain.

Fontaine Fisheries: A key location from the original BioShock, the Fisheries were home to Fontaine and his gangland allies. It's symmetrical in nature, with the icy freezers as the center of conflict. You'll battle through dock areas, salt ponds, and more as you make shady new friends and then gut them like fish.

Fighting McDonagh's: This is a zoomed-in, intimate look at one of the Fisheries' most famous locations. The Fighting McDonagh's tavern was the favored watering hole of the city's underclass, who took the frustration of their broken utopian dreams out on each other in sponsored boxing matches. It's dense and highly interconnected, serving up plenty of chances for a close-range ambush.

Smuggler's Hideout: This cavernous, once-secret location was where Fontaine's smuggling operation docked a private submarine and moved contraband into Rapture, daring Andrew Ryan to stop the people getting what they wanted. The bulk of it favors long range skirmishing, but it has a number of back routes and semi-secret tunnels to help you sneak up on snipers and ventilate 'em.

Siren Alley: Shaped like a big, sexy donut, Siren Alley was the red-light district in Rapture. The looping path means it's easy to find the action, and the footbridges and overlooks allow you to snipe from higher ground. Shortcuts through the interior flophouses give you a chance to bushwhack someone whether they take the high road or the low.