BioShock

In my opinion, this achievement is only tricky due to the “All Kinds of Big Daddies” room again. In nekov4ego’s video (posted below), he smokes this area where I tend to struggle. Once again, using the manual save system in a large quantity will make this achievement a lot less painful. There is also no time limit for this achievement, so feel free to take your time. Please see below for a text and video guide.

• Difficulty: Medium (this is the minimum setting that you can use for this achievement)
• Weapons: Wrench, Camera
• Plasmids: Electro Bolt 3, Decoy, Incinerate 2
• Tonics: Damage Research, Wrench Jockey, Armored Shell, Eve Saver

A Single Splicer: Use the Wrench to take the Splicer out, then retrieve your weapons from the Little Sister vent and loot the room for film, money and other supplies.

A Single Big Daddy: Grab the Damage Research tonic before you proceed then take a photo of the Big Daddy as you enter so you get a damage bonus. Use the Wrench to draw the Big Daddy's attention and lure him into the electrified water. Repeat if necessary and try to hit him with the Wrench when possible while avoiding his attacks.

Houdini Splicers: Make sure you at least have Electro Bolt 3 and Wrench Jockey before you proceed. Take a photo of the first Splicer you see, then use Electro Bolt + Wrench to take out the enemies. It should be a one-hit kill once they are electrified.

Spider Splicers: Take a few photos of the Splicers in the room and use Electro Bolt + Wrench to take them out. If you see any crawl up the ceiling at the center of the room, electrocute them into the water for an easy kill.

Security Turret Maze: Grab Decoy before you enter the arena. Take enough photos of the Turrets so that you can hack them automatically. Kill the splicers with Electro Bolt + Wrench and hack ALL the Turrets around. Then draw the Big Daddy's attention and keep him busy with Decoys while your Turrets do the work for you. Then proceed to destroy all of the Turrets once they have outlived their usefulness.

All Kinds of Enemies: Save hacking the Turret for last! What nekov4ego did was a mistake - don't risk Splicers destroying your turret as it is crucial for killing the Big Daddy. Take all the Splicers out with Electro Bolt + Wrench, then hack or buy out the turret at the center of the arena and draw the Big Daddy's attention. Use a lot of Decoys to keep him busy while your friendly Turret kills him. Try to spawn Decoys far away enough from your Turret to avoid the Daddy destroying it.

Security Bots: Take enough photos of the Security Bots so that you hack them automatically. Then hack all available ones and proceed to killing the Splicer at the Security Bot Panel to stop the alarm. Use your friendly Bots to kill the Big Daddy as you keep him busy with the Decoy Plasmid.

All Kinds of Big Daddies: Make sure you grab Incinerate 2. Take as many photos of the Big Daddies as you can to get the 50% Wrench damage increase as well as general damage bonus for Rosies. This is possibly the worst arena, but here's what you can do - try to lure a Rosie to kill all 3 other Big Daddies WHILE you use Incinerate on him to deplete his health. After fighting 3 Daddies, he should have only a little life left in him, so keep on spamming Incinerate to finish him off. Remember, you can always reload a save if necessary.

Final Wave: Use Electro Bolt + Wrench for all the Splicers except the Elite ones with Security Bots - when these arrive, hack their Bots before you kill them so that you can use them for the Big Daddy. Speaking of the devil, spam Decoys to keep the Daddy away from your Security bots and use Incinerate to speed up the whole process.

That's it! Go rescue the Little Sister in order to unlock the achievement.