
Mission 3 Walkthrough – Complete Guide for 007 First Light
Mission 3 in 007 First Light, "Shadow Protocol," is where the game truly tests your skills as a secret agent. This facility infiltration mission combines tight security, multiple objectives, and challenging enemy placements. Whether you're attempting your first playthrough or hunting for S rank, this complete walkthrough will guide you through every section with detailed strategies.
This guide covers optimal routes, stealth approaches, combat alternatives, and all optional objectives. Follow these steps to complete Mission 3 efficiently and with style.
Mission 3 Overview
- Mission Name: Shadow Protocol
- Location: Research Facility, Eastern Europe
- Difficulty: Medium
- Estimated Time: 25-35 minutes (first playthrough)
- Recommended Level: 5+
Mission Objectives
Primary Objectives
- Infiltrate the research facility
- Locate and extract Dr. Volkov
- Download classified research data
- Destroy the prototype weapon
- Escape via rooftop extraction
Optional Objectives
- Collect 3 intel documents
- Complete mission without triggering alarms
- Eliminate the facility commander
- Hack 5 security terminals
Note: Completing all optional objectives is required for S rank and unlocks bonus rewards.
Recommended Loadout
Before starting Mission 3, equip this optimal loadout for maximum effectiveness:
- Primary Weapon: Silenced Pistol (upgraded suppressor)
- Secondary Weapon: Tranquilizer Gun or Crossbow
- Gadget 1: Spy Drone (essential for scouting)
- Gadget 2: Hacking Device
- Throwable: EMP Grenades (2-3 recommended)
This loadout prioritizes stealth while providing combat options if things go wrong.

Section 1: Facility Perimeter (0-5 minutes)
Objective: Infiltrate the Research Facility
The mission begins outside the heavily guarded research facility. You have multiple entry options, but the stealth route is optimal for S rank.
Step-by-Step Approach:
- Deploy Spy Drone: Immediately use your Spy Drone to scout the perimeter. Mark all guards (6 total) and identify the camera positions (3 cameras covering the main entrance).
- Locate the Side Entrance: On the eastern side of the facility, you'll find a ventilation shaft. This is your optimal entry point.
- Disable Perimeter Cameras: Use your Hacking Device on the security panel near the eastern fence. This disables all perimeter cameras for 60 seconds.
- Eliminate or Bypass Guards: Two guards patrol near the vent entrance. Wait for them to separate, then either tranquilize them or wait for the patrol gap (appears every 45 seconds).
- Enter Ventilation Shaft: Crouch and enter the vent. This leads directly into the facility basement, bypassing the main security checkpoint.
💡 Pro Tips for Section 1:
- The guard patrol pattern repeats every 90 seconds—time your movements accordingly
- If detected here, restart immediately as it affects your stealth score significantly
- Intel Document #1 is located in the guard shack near the main gate (optional detour)
- Save your EMP grenades for later sections—they're more valuable inside
Alternative Route: Main Entrance
If you prefer a combat approach or missed the vent entrance, the main gate is viable but triggers more enemy encounters. You'll need to eliminate 4 guards and hack the main door, which takes approximately 2 minutes longer.

Section 2: Basement Level (5-12 minutes)
Objective: Navigate to Dr. Volkov's Lab
The basement is a maze of corridors with heavy guard presence. This section requires careful timing and route planning.
Detailed Walkthrough:
- Exit the Ventilation Shaft: You emerge in a storage room. Wait 5 seconds for the guard outside to pass before opening the door.
- Corridor Navigation: Turn left and follow the corridor. Three guards patrol this area in a triangular pattern. Use your Spy Drone to track their positions.
- Security Terminal #1: In the first side room on your right, hack the security terminal (optional objective). This reveals enemy positions on your minimap for 3 minutes.
- Avoid the Laser Grid: The main corridor has a laser security system. Either hack the control panel (left wall) or crawl under the lasers (crouch and move slowly).
- Stairwell Encounter: At the stairwell, two guards are stationed. Use a distraction (throw an object) to separate them, then eliminate them silently or use the alternate vent route above.
- Reach the Lab Entrance: The lab entrance is on the second floor. The door requires a keycard, which is carried by the patrol captain (identifiable by red beret).
Obtaining the Keycard:
The patrol captain follows a specific route:
- Starts at the security office (ground floor)
- Walks to the break room (2-minute stop)
- Patrols the second-floor corridor
- Returns to security office
Best Opportunity: Ambush him in the break room when he's alone. Tranquilize or silently eliminate him, take the keycard, and hide the body in the nearby locker.
💡 Pro Tips for Section 2:
- Intel Document #2 is in the security office—grab it when obtaining the keycard
- The vent route above the stairwell saves 90 seconds but requires the Grappling Hook
- Hacking all 5 security terminals reveals the facility commander's location (optional objective)
- Save before engaging the patrol captain in case you're detected
Section 3: Dr. Volkov's Lab (12-18 minutes)
Objective: Locate and Extract Dr. Volkov
The lab is the mission's centerpiece, featuring multiple objectives and the first major decision point.

Lab Infiltration Steps:
- Enter the Lab: Use the keycard on the lab door. Inside, you'll find Dr. Volkov working at his terminal, guarded by 2 scientists and 3 armed guards.
- Disable Lab Security: Immediately hack the security terminal near the entrance. This prevents lockdown if you're detected.
- Approach Dr. Volkov: Wait for the guards to patrol away from Volkov's station. The optimal window is when both guards are inspecting the prototype weapon (eastern side of lab).
- Convince Dr. Volkov: Interact with Volkov to trigger a cutscene. He'll agree to leave but needs 2 minutes to download critical data.
- Download Research Data: While Volkov downloads data, you must access 3 research terminals around the lab to complete the data extraction (primary objective).
- Defend or Stealth: During the download, guards will patrol more frequently. Either remain hidden or prepare for combat if detected.
Research Terminal Locations:
- Terminal 1: North wall, near the chemical storage (guarded by 1 scientist)
- Terminal 2: Center of lab, next to the prototype weapon display
- Terminal 3: South wall, in the observation room (requires hacking the door)
Optimal Route: Terminal 3 → Terminal 1 → Terminal 2. This path minimizes guard encounters and keeps you near Volkov for the extraction.
💡 Pro Tips for Section 3:
- Intel Document #3 is in the observation room with Terminal 3
- The prototype weapon can be sabotaged early (saves time in Section 4)
- Use EMP grenades to disable the lab's security cameras permanently
- If combat starts, use the chemical storage as cover—it's bulletproof
- Volkov will follow you once the download completes—protect him from enemy fire
Section 4: Prototype Weapon Destruction (18-23 minutes)
Objective: Destroy the Prototype Weapon
With Dr. Volkov secured, you must destroy the experimental weapon before extraction. This section can be completed stealthily or with explosive action.

Destruction Methods:
Method 1: Stealth Sabotage (Recommended for S Rank)
- Access the weapon's control terminal (requires hacking skill level 3)
- Initiate the self-destruct sequence
- You have 90 seconds to reach the extraction point before explosion
- No alarms triggered, maximum stealth score
Method 2: Explosive Destruction
- Plant C4 charges on the weapon's power core (3 charges required)
- Clear the area and detonate remotely
- Triggers facility-wide alert, expect heavy resistance
- Faster but reduces stealth score
Method 3: Environmental Destruction
- Shoot the coolant tanks surrounding the weapon (4 tanks total)
- Causes chain reaction that destroys the weapon
- Moderate noise, may alert nearby guards
- Grants style points for creative destruction
⚠️ Important Notes:
- If you sabotaged the weapon earlier in Section 3, you can skip this section entirely
- The facility commander will appear during this section if you haven't eliminated him yet
- Dr. Volkov must survive—keep him in safe areas during combat
- After destruction, you have limited time before reinforcements arrive
Section 5: Rooftop Extraction (23-30 minutes)
Objective: Escape via Rooftop Extraction
The final section is a race against time. You must escort Dr. Volkov to the rooftop extraction point while evading or fighting through enemy forces.

Extraction Route:
- Exit the Lab: Leave through the emergency exit (north side). This leads to a service stairwell.
- Stairwell Ascent: Climb 4 floors. Each floor has 2-3 guards. Use smoke grenades to cover your movement if detected.
- Rooftop Access: The rooftop door is locked. Either hack it (30 seconds) or use the emergency override (instant but triggers alarm).
- Clear the Rooftop: 4-6 enemies will be on the rooftop depending on your alert status. Eliminate them or reach the extraction zone (marked by green smoke).
- Hold Position: Once in the extraction zone, defend for 60 seconds until the helicopter arrives.
- Board Helicopter: Interact with the helicopter to complete the mission.
Defending the Extraction Zone:
During the 60-second wait, enemies will assault from three directions:
- Stairwell Door: Primary threat, 2-3 enemies every 15 seconds
- Rooftop Access Ladder: 1-2 enemies climb up from the east side
- Zipline: Elite guards may zipline from adjacent buildings (only on high alert)
Defense Strategy: Position yourself behind the HVAC units (center of rooftop) for cover. Focus on the stairwell door first, then handle ladder climbers. Dr. Volkov will hide automatically—don't worry about protecting him during this phase.
💡 Pro Tips for Section 5:
- If you maintained stealth throughout, only 4 enemies will be on the rooftop
- The Grappling Hook can access a hidden sniper position (southwest corner)
- Explosive barrels near the stairwell door can eliminate multiple enemies
- The facility commander will make his final appearance here if still alive (optional objective)
- Perfect extraction (no damage to Volkov) grants bonus XP
Optional Objective: Eliminate the Facility Commander
The facility commander is an elite enemy who appears in different locations depending on your alert level. Eliminating him is optional but grants significant rewards.
Commander Locations:
- No Alerts: Security office (Section 2), sitting at desk
- Low Alert: Lab entrance (Section 3), inspecting security
- High Alert: Rooftop (Section 5), leading the defense
Combat Tips: The commander has 3x normal health and uses a riot shield. Aim for headshots when he's reloading, or use explosive damage to bypass the shield. Eliminating him early (security office) is easiest.
S Rank Strategy
Achieving S rank on Mission 3 requires near-perfect execution. Here's the optimal approach:
S Rank Checklist:
- ✓ Complete all optional objectives (intel documents, security terminals, commander)
- ✓ Maintain zero alerts throughout the mission
- ✓ Complete in under 25 minutes
- ✓ Use stealth sabotage method for weapon destruction
- ✓ Extract with Dr. Volkov taking no damage
- ✓ Achieve 90%+ headshot accuracy if combat occurs
🏆 Optimal S Rank Route Summary:
- Enter via ventilation shaft (Section 1)
- Eliminate commander in security office, grab Intel #2 (Section 2)
- Hack all 5 security terminals while navigating basement
- Sabotage prototype weapon early in lab (Section 3)
- Collect all intel documents
- Use stealth extraction route with zero combat
- Complete in 22-24 minutes
Common Mistakes to Avoid
Mistake 1: Rushing the Basement Section
Many players rush through the basement and trigger multiple alerts. Take your time, use the Spy Drone, and wait for patrol gaps. Patience saves time in the long run.
Mistake 2: Ignoring Security Terminals
Hacking security terminals reveals enemy positions and makes navigation significantly easier. Don't skip them even if they're optional objectives.
Mistake 3: Poor Dr. Volkov Protection
If Volkov dies, you fail the mission. Always keep him behind cover during combat sections and clear areas before moving him forward.
Mistake 4: Wrong Weapon Destruction Method
Using explosives triggers facility-wide alerts and makes extraction much harder. Always use the stealth sabotage method for optimal results.
Rewards and Unlocks
Mission Completion Rewards:
- Base Completion: 2,500 XP, 1,000 credits
- All Optional Objectives: +1,500 XP, +500 credits
- S Rank: +2,000 XP, +1,000 credits, Tactical Suit unlock
- Zero Alerts: Ghost Achievement, +500 credits
- Commander Eliminated: Commander's Sidearm weapon unlock
Frequently Asked Questions
How long does Mission 3 take to complete?
First-time playthroughs typically take 30-40 minutes. Experienced players can complete it in 20-25 minutes. S rank speedruns can finish in under 18 minutes using advanced techniques.
Can I complete Mission 3 without killing anyone?
Yes, a non-lethal playthrough is possible using the Tranquilizer Gun and avoiding combat encounters. However, you must still "eliminate" the facility commander (tranquilizing him counts). This approach takes longer but grants the Pacifist achievement.
What happens if Dr. Volkov dies?
Mission failure. You'll restart from the last checkpoint. Always prioritize Volkov's safety, especially during the lab section and rooftop extraction. Keep him behind cover and clear areas before advancing.
Where are all the intel documents located?
Intel #1: Guard shack at facility entrance (Section 1). Intel #2: Security office where you get the keycard (Section 2). Intel #3: Observation room in the lab (Section 3). All three are required for the optional objective completion.
Is the ventilation shaft route always available?
Yes, the vent entrance on the eastern perimeter is always accessible. It's the optimal entry point for stealth playthroughs and significantly easier than the main entrance. Use your Spy Drone to locate it if you're having trouble finding it.
Can I replay Mission 3 for better rewards?
Yes, you can replay any completed mission from the mission select menu. Your best score is saved, and you can earn additional rewards by completing objectives you missed. Replaying is recommended for S rank attempts and achievement hunting.
Conclusion
Mission 3: Shadow Protocol is a challenging but rewarding experience that tests all your agent skills. By following this walkthrough, you'll navigate the facility efficiently, complete all objectives, and achieve S rank with practice.
Remember that stealth is always the optimal approach—patience and planning beat rushing every time. Use your Spy Drone liberally, hack security terminals for intel, and prioritize Dr. Volkov's safety above all else.
For more mission strategies, check out our complete missions guide and optimize your approach with our best loadout recommendations. Good luck, agent!