Item description:

The pictures skim the very small amount that is underneath the surface of the map...

-10 barricade rooms and 4 climbing spots on deck floor
-6 barricade rooms in the atrium and lower deck
-engine room with 1 barricade spot and 2 climb spots
-Cargo room with classic red fail crate =D
-Working vault door to cargo room
-Custom textures
-Custom smoke stack effects
-cubemaps, areaportals, varied lighting from blue to yellow
-Major optimization to give 200 percent fps benefits
-All props are prop_physics_override, giving players more control
-Working advanced elevator

*64 player spawns* forgot to tell you that in this description

EDIT- Map name changed to zm_zombiecruise_fixed and the update includes a number of bug fixes and lighting fixes as well as a spawning fix

Sorry for any confusion caused by the change