Hyneman chimed in as Sigma reached the office, "Sorry I can't be there to meet you in person. You've seen the state of the Den these days. It's the Thinker that's important now, though. I need you to get to the computer core and print out a hard of the Thinker's machine code. Core access is in Operations. There's an Ops access punch card hidden in the compartment under my desk. Grab the card and head for Ops." Just as Hyneman stopped talking Wahl decided to chime in, "Hyneman's time is done, friend, and now you collude with this traitor to steal the Thinker away from me? Huh… Sigma must be removed from the equation." Maggie said to Sigma, "What's an equation Daddy?" Sigma responded by pointing to the math problem drawn in blood on the wall. "Oh, that makes my brain hurt Daddy. I don't like math."
Sigma proceeded into the office and picked up the punch card, laser cells, some cash, and a picture of a young woman. The name of the woman was Lucy Hyneman. She had red hair, violet eyes, and tan skin. Just then a fiery brute splicer came running into the room and rammed Sigma. "Thinker, deploy office defenses!" Hyneman yelled from the intercom. A turret popped out from a grate in the floor. The turret proceeded to shoot the brute splicer. While it was distracted Sigma destroyed it with a combination of ion laser fire and drill attacks. "Unzip him Daddy, Unzip him." The splicer injured Sigma, but he healed at a nearby health station. "Wahl, he was a brilliant engineer. We saw eye to eye once, long ago, but the splicing made him paranoid. He'd murder us both to keep the Thinker here."
Sigma decided to use this as an opportunity to gather some ADAM with Maggie. He found a suitable corpse and set her down to do her thing. She stuck the needle in and proceeded to drink the blood. However the splicers decided to attack him at this time. He fought off the first thuggish splicer with a quick drill spin to the chest. After that a leadhead came along, he took this out with telekinesis and a propane tank. Then, several spider splicers came out of nowhere; he took aim with his ion laser and destroyed them. "Almost done little angel." "Sigma! The Lancer is the most technologically advanced Big Daddy that Rapture ever created! One's coming your way, look out!" Hyneman screamed into the radio. The Lancer appeared out of nowhere; blinded Sigma with its ion flash attack. Sigma decided it was time to use Hypnotize and befriend this Daddy. "Subject Sigma rises above the pack, hmm? A futile gesture before the all-knowing Thinker," said Wahl. Once he befriended this hulking beast Maggie said she was done so he picked her up. "Do what you will with the girls! Twist your body with ADAM! The Thinker's perfect equation accounts for all possibilities!" Wahl screamed. He backtracked to the Gatherer's Garden and bought Winter Blast, plasmid slot, and armored shell tonic. He then went to the Operations elevator. "Hell. The mag-lock door's still active. It's regulated by the resistors plugged into that relay. If you can find a way to yank 'em out-magnet's fail, doors open. There's a Plasmid that could do the job. They call it… Gravity Well. According to the Thinker's records, the Air-Tite Archives' had a shipment of Gravity Well on hand. Getting into the archives warehouse, that'll be the fun part."
Sigma proceeded up to the warehouse only to see a short circuiting switch. He decided to check out McClendon Robotics to see if they had an Electrobolt plasmid. Sigma crossed the main hall and hacked his way into Robotics. He then tried looking in the System Design area, but he got attacked by a turret and a few splicers which the Lancer made quick work of. "Daddy, look a new toy! Let's go get it." This toy turned out to be a spear gun. Sigma picked it up and proceeded to try it out. "At least this will come as a surprise to you," Wahl said. Suddenly, five leadhead splicers jumped out of nowhere; Sigma took two of them out with the spear gun, he then took another two out with an ion laser and mutilated the last splicer with a drill dash. Sigma decided there was nothing here so moved on to the showroom. "How does it feel to know that your grand purpose is foretold by a machine? The numbers know already what will happen. As I tell you this will it affect the outcome? Meh, I am not so much holding my breath." Sigma was thinking, "Wahl, I'm sick of hearing about this stupid machine." Once he got there, he decided it was time to ditch the Lancer, luckily there was another one in the area. He decided to set his Lancer on the other Big Daddy. "Ohh Daddy, look its two more Daddies. Are they fighting over me? *giggle*" Sigma laughed in his head and searched the corpses of the two Lancers. He found 400 dollars, 200 ion cells, and 4 first aid kits. He used the money to buy rocket and trap spears, thermal cells and burst cells, and drill fuel. He then climbed up and activated a crane which moved out of his way.
Once he proceeded across a narrow walkway to get a plasmid, he saw something that haunted him until the end of his days. These things he saw were Robotic Little Sisters. They crawled around the room acting like normal kids, but with creepy metallic voice. "Daddy, what's wrong with those girls? Are they ok?" He moved as quickly as he could and grabbed Electrobolt from the desk. With this in hand he headed out the door and decided to kill off some splicers. He used his drill and electrobolt aka the one-two punch to take out most of them. He then befriended another Lancer and headed to the archives. "One good zap from that Electrobolt plasmid should get you into the archives." So Sigma followed his advice and shocked the door control panel.