Chapter 4: The Below

Chapter 4, "The Below," plunges Jacob into the claustrophobic and treacherous underbelly of Black Iron Prison. This chapter significantly ramps up the tension, introducing new enemy types that demand a tactical shift towards stealth and environmental awareness. Expect to navigate dark, water-logged corridors, solve intricate environmental puzzles, and face terrifying blind Biophages that hunt by sound. Resource management, especially for your newly acquired Shotgun, becomes paramount.

Navigating the Flooded Corridors: Stealth and Sound

Upon entering "The Below," Jacob will find himself in a series of dimly lit, flooded maintenance tunnels. This area serves as a brutal introduction to the Blind Biophages – mutated enemies with enhanced hearing but no sight. Their presence necessitates a fundamental change in your approach to combat and exploration.

Blind Biophage Encounter Strategies:

Silence is Golden: Movement speed is critical. Always use crouch-walking (Left Stick click on controller, C on PC) when in proximity to Blind Biophages. Running or even fast walking will immediately alert them.
Sound Cues: Listen carefully for their guttural growls and the distinct clicking sounds they make. These indicate their general direction and proximity.
Environmental Distractions: Utilize throwable objects (pipes, boxes) to create noise distractions. Throw an object away from your intended path to draw the Biophage's attention, allowing you to slip past or get into a prime ambush position.
Melee First, Then Finish: If combat is unavoidable, a stealth attack (melee from behind while crouched) will stun them. Follow up with a few quick melee strikes or a single powerful Shotgun blast to the head.
Avoid Gunfire Unless Necessary: Firing a weapon, especially the Hand Cannon, creates significant noise. Save gunfire for when you are detected or need to quickly dispatch a threat.
GRP Module Utility: The GRP Module is invaluable. Use it to grab and throw Blind Biophages into environmental hazards (spikes, grinders) or to temporarily incapacitate them while you escape or reposition.

Environmental Puzzles: Water Flow and Ventilation

Throughout "The Below," Jacob will encounter several environmental puzzles that block progress. These typically involve manipulating water flow or ventilation systems to clear paths or activate machinery. Pay close attention to your surroundings and look for interactive panels or valves.

Common Puzzle Mechanics:

Valve Manipulation: You'll often find a series of valves that need to be turned in a specific sequence or to a particular pressure level to drain flooded areas or open doors. Look for visual cues (pressure gauges, water levels) or audio feedback.
Power Conduit Repair: Some areas require restoring power by finding and repairing damaged conduits. This usually involves interacting with a junction box and then following the power lines to the broken section, often requiring a quick-time event (QTE) or a simple button press to fix.
Fan Obstructions: Large industrial fans may block your path. Look for control panels nearby that can either slow them down, stop them, or reverse their flow. Sometimes, you'll need to throw an object into the fan blades to jam them.

Specific Puzzle Example: The Flooded Pump Room

One notable early puzzle involves a heavily flooded pump room. To proceed:

Locate the main control panel on a raised platform. It will be sparking and non-functional.
Follow the visible power conduit leading from the panel. It will lead you to a damaged junction box submerged in water.
Carefully approach the junction box. You'll need to perform a timed interaction (press X/A repeatedly) to repair it. Be aware of any lurking Biophages in the water.
Once repaired, return to the main control panel. Activate it to begin draining the room.
As the water drains, a new path will open, but be prepared for a surprise Biophage ambush from a newly revealed vent.

Acquiring the Shotgun: A Game Changer

A pivotal moment in "The Below" is the acquisition of the Shotgun. This powerful close-range weapon is found relatively early in the chapter, usually in a security locker or an armory room after a challenging combat encounter or puzzle solution.

Shotgun Details:

Location: Typically found in the Maintenance Sector Armory, accessible after restoring power to a locked door.
Damage: High, especially at close range. Excellent for staggering and dismembering enemies.
Ammo Type: Shotgun Shells. These are scarce, so use them wisely.
Upgrade Potential: Can be upgraded at Reforge stations for increased damage, capacity, and reload speed. Prioritize damage for immediate impact.

Post-Shotgun Combat Encounters:

With the Shotgun in hand, your combat options expand significantly. However, its limited ammo means it's not a primary weapon for every encounter.

Crowd Control: The Shotgun excels at clearing groups of weaker Biophages or creating breathing room when surrounded.
Elite Enemies: Against tougher Biophages (e.g., the armored variants), a well-placed Shotgun blast to a weak point (often a limb or head) can quickly dismember and incapacitate them.
Blind Biophages (Detected): If a Blind Biophage detects you, a Shotgun blast to the head is often the quickest way to neutralize the threat before it can close the distance.
Resource Management: Always check your ammo count. Use the Hand Cannon or melee for weaker, isolated enemies to conserve Shotgun shells for critical situations.

Key Areas and Progression:

The chapter's progression is generally linear, guiding Jacob through several distinct zones:

Flooded Maintenance Tunnels: Introduction to Blind Biophages and stealth mechanics. Focus on quiet movement and environmental distractions.
Pump Station: Features the first major water-draining puzzle. Be wary of Biophages hiding in the water.
Ventilation Shafts: A series of tight, enclosed spaces often requiring Jacob to crawl or squeeze through. Expect jump scares and close-quarters combat.
Security Armory: The location where the Shotgun is acquired. Often guarded by a few standard Biophages.
Sub-Level Control Room: A more open area with multiple Blind Biophages patrolling. This section often requires careful stealth navigation or strategic use of the GRP and Shotgun.
Waste Disposal Unit: The chapter culminates in a large, industrial area, often involving a final, more complex environmental puzzle or a mini-boss encounter before proceeding to the next chapter.

Collectibles and Upgrades:

Keep an eye out for hidden caches and lockers containing valuable resources. Data logs often provide lore and hints. Always visit a Reforge station when available to upgrade your weapons, especially the Shotgun, and craft essential items like health injectors and GRP batteries.

Recommended Upgrades for Chapter 4:

Shotgun: Prioritize Damage Upgrade 1 and then Magazine Capacity 1.
Hand Cannon: If you have spare credits, Damage Upgrade 1 is always useful for general combat.
GRP Module: Throw Distance or Battery Capacity can be very helpful for managing Blind Biophages and environmental interactions.

Common Pitfalls and Missables:

Rushing Through Stealth Sections: Impatience will lead to Jacob being overwhelmed by Blind Biophages. Take your time, listen, and plan your movements.
Wasting Shotgun Ammo: Every shell counts. Don't use it on single, easily dispatched enemies unless absolutely necessary.
Ignoring Environmental Hazards: The environment is your friend. Use spikes, grinders, and ledges to your advantage with the GRP module.
Missing Data Logs: These often provide valuable context and sometimes even hints for puzzles. Check every corner.

By mastering stealth, understanding the new enemy types, and efficiently utilizing your resources, Jacob can successfully navigate the perilous depths of "The Below" and emerge ready for the challenges ahead.