ze_bioshock
http://css.gamebanana.com/maps/187732
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Features
◾4 different stages
◾Difficulty balancing
◾Player items (based around Plasmids from Bioshock)
◾Secrets including skins and alternate endings
◾Boss fights
◾Themed hold timers
◾Complete soundtrack
◾A huge amount of custom content (textures, particles, models, sounds)

Each stage is inspired by areas of either Bioshock 1 or 2. Some locations are exact replicas & some are of original design to better fit the game. When a player enters a new location, they are provided with a notification of the location they have entered.