Complete walkthrough for Part 25 of Max Payne, covering Chapters 3 and 4. Includes mission steps, enemy encounters, and puzzle solutions for 'The Deep Six', 'Project Valhalla', and 'Backstabbing Bastard'.
Walkthrough:
- Part 25 - Processing
- Chapter 3: The Deep Six
- Chapter 3: Project Valhalla
- Chapter 4: Backstabbing Bastard
Head through the door on the right labeled "Processing". Kill the three mercenaries that appear. Pick up the painkiller dropped by two of them. Continue through the door marked "Test Facilities", then enter the door on the right with the same name to finish the level.
Follow the corridor to the right and pass through the door marked "Test Subject Cells". Use the "Cell Access" computer on the right to open the door, but you need the code first.
Retrace your steps to the beginning and go left through the door labeled "Laboratories". Find the dead chemist in an adjacent room. The computer screen shows the code 665. Return to the cellblock and input 665 to open the door.
Find the door marked "Block B" and take the elevator down. In Block-B, find the chemist in cell B-7. Follow him as he takes the elevator up to Block-A.
As you leave Block-A, mercenaries will appear. Kill them using a shoot-dodge. Return to the room with the dead chemist. Enter the decontamination chamber on the left. The scientist will activate it.
When the process ends, the level concludes.
Run down the corridor. Watch the mercenaries shoot the scientist across the bulletproof glass. Head through the door and jump over the counter in the far corner to enter "Laboratories 2". Take the elevator down.
You will arrive in a room with laser tripwires near the ground. Throw a grenade into the room to disable most of the lasers. Jump over any remaining lasers and make your way to the computer in the right corner displaying a yellow logo.
A cinematic plays, explaining Project Valhalla was a drug to enhance soldier performance, cancelled due to poor results. Experiments continued unauthorized, leading to the elimination of those involved when project data was leaked, including Michelle Payne.
After the cinematic, take the elevator labeled "Storage" up. At the next level, head through the door with the blue monitor and enter the decontamination chamber.
An explosion damages the decontamination computer, and a thirty-second self-destruct timer begins. Look through the glass on your left and shoot the sensor against the wall. The explosion opens the door.
Race through the laboratories to the exit. Leave the room and enter the elevator marked "Surface Storage". Ascend to the surface before the timer reaches zero to end the level. Avoid standing on the grate in the center of the elevator as it ascends, as it will collapse.
The chapter ends with Max running across the foundry yard as the building explodes.
Objective: Kill B.B. and escape from the Choir Communications garage.
Max receives a call from B.B., who previously worked with Alex and set up Max's meeting with Alex at Roscoe Street station. Max realizes B.B. betrayed him.
At the Choir Communications garage, Max confronts B.B., who escapes in a car, leaving his goons to attack Max.
Find cover against the wall directly in front of you. Two of B.B.'s thugs will approach from the other end of the garage. Gun them down as they appear separately.
Head around the left side of the garage and look around the corner. Two more thugs are by the ramp leading to the next level. Lure them out.
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