Fort Frolic*

Vita-Chambers

1. At the entrance
2. Facing the door to Poseidon Plaza

Normal Progression

Normally this level involves two meetings with Cohen, and killing some dudes. However, most of it can be skipped.

In the room where the final Bathysphere sinks into the water, with some clever object stacking and platforming one can get onto
the invisible wall that runs around the perimeter of the normal walkable area of the room, then follow this around, over the top
of the trigger that removes the Bathysphere, and drop into the Bathysphere, use it and end the level.

Kill Some People

Kill Martin Finnegan. Take a picture.

* "Take Finnegan's picture"
Note: there's another crossbow lying around after he's dead. You may be able to 
skip the first one.

Kill Silas Cobb. Take a picture. Note that the door leading outside doesn't open until you kill all the spider splicers. So stay downstairs to kill them faster.

If you death warp out of the room after the explosion, the door will be open 
and Silas will be standing at the entrance to the crawlspace.

Kill Hector Rodriguez. Take a picture.

A fast way to take Hector Rodriguez down AND nearly kill yourself in the process is
proximity mines.  Takes 2 on Medium.   You have to put them in a trail, separated by
a bit, and run with Hector as he runs over them in order to make progress towards a
death warp. But you've got plenty of time to set that up while Jasmine's ghost does
her thing.   Hector is look-activated.  So you can go towards the door so long as you
don't look.  That might be useful if you have to hit him with frag grenades instead. 
This'd be a good opportunity to use the "switch to plasmids and back and avoid the
reload" trick.

Head back to the Atrium.

Get the Hell Out of Fort Frolic

Put two photos in.

* "Coming together" - diary-skip; after 2nd picture
* "Screw all you doubters" - diary-skip; after 3rd picture - waits for 
  "Coming together"

Cohen sends some splicers at you.

The splicers spawn based on where you are standing and where you are looking.  As far
as I can tell, there are certain spawn points located around the area and the game
chooses the closest spawn point to your location that you aren't looking towards, as
long as you aren't too close to it.  For example, there is a spawn point in the
corner of the lower level, in the far right corner when looking away from the
quadtych.  If you are standing next to the wall, near the glass cases, looking away
from the spawn point, one of the initial splicers will spawn there.  If you walk
past the cases towards the spawn point, then the splicer will not spawn there.  If
you look towards the spawn point, the splicer will not spawn there.  There doesn't
seem to be any determining factor as to whether it is a thuggish or spider splicer
that spawns, either, although spider splicers are much more common.
Two splicers spawn as Cohen begins saying "Fly away, little moth!"  Every time you
kill a splicer, one more spawns, with the exception of the tenth one, which spawns
two.  Cohen says "Smile, smile!" after killing the fifth one, which has no effect on
the game.  You have to kill a total of 17.
Because of the way the splicers spawn, the best way to fight is to kill all the
splicers in view, then spin 180 degrees to kill the ones that just spawned behind
you.
  
* "Sorry for the outburst" - diary-skip; after goons defeated

Put the last photo in, head immediately for the door, leave Fort Frolic.

Waits for the completion of "Sorry for the outburst"

* "On to bathysphere" (Atlas) - let play
 
All messages will stop when you reach the bathysphere.

Death Warps

• Out of Cohen's trap.
• Out of Silas' trap. (?)
• Back from killing Hector Rodriguez.

Notes

"One other change besides adding a death warp after the last photo is buying less incendiary bolts and getting at least one hacking tool at that shop. Maybe getting more electric buck, instead, too, since I doubt I'll be needing that many incendiary bolts. It will be easier to tell once I get further into it what ammo I would rather have more of. " - Cauldrath

"Well, what I was going for, which is the perfect situation, is a one-shot kill. Happened on one of my exploration runs, I shot him once and he exploded, dying instantly. I think I must have hit his Molotov cocktail with my incendiary bolt, but it worked instantly." - Cauldrath on Hector Rodriguez

"Maybe you could even use [Security Bullseye] for Cohen's little temper tantrum after placing the third picture on the Quadtych" - Psychochild

ExplodingCabbage's notes on radio skipping: [1]

There's no early way out of the freeze - not even if you throw a burning corpse in the right spots.

There's no way to radio skip Jasmine, it looks like.