Introduction
Your checkpoint in Quarantine Zone: The Last Check isn’t just a screening station - it’s a fortress under siege. Every few days, massive zombie hordes will attempt to breach your defenses. One failed defense means game over.
This comprehensive guide covers everything you need to survive these deadly assaults: weapon systems, combat tactics, upgrade priorities, and advanced strategies.
Understanding Zombie Hordes
Horde Timing & Escalation
Attack Schedule:
- First Attack: Day 4-6
- Second Attack: Day 8-10
- Third Attack: Day 12-14
- Subsequent Attacks: Every 3-5 days
Difficulty Progression:
- Attack 1: 30-40 zombies, 2-3 minutes
- Attack 2: 50-70 zombies, 3-4 minutes, Runners appear
- Attack 3: 80-100 zombies, 4-5 minutes, Tanks appear
- Attack 4+: 120-200+ zombies, 5-7 minutes, all types
Zombie Types
1. Standard Zombies (70% of hordes)
- Speed: Slow-walking
- Health: Low (3-5 shots mini-gun, 1 rocket)
- Threat: Numbers and persistence
- Strategy: Crowd control with mini-gun
2. Runners (20-30% after Attack 2)
- Speed: Fast sprint
- Health: Low-Medium (5-8 shots, 1 rocket)
- Threat: Reaches gate quickly, flanks slow zombies
- Strategy: Priority targets, use rockets
3. Tank Zombies (5-15% after Attack 3)
- Speed: Slow but unstoppable
- Health: Very High (20-30 shots, 2-3 rockets)
- Threat: Absorbs damage, protects others
- Strategy: Focus fire or rocket barrage
Weapon Systems
Mini-Gun Turret
Specifications:
- Damage: 10 per shot (base)
- Fire Rate: 10 rounds/second
- Reload Time: 3 seconds every 100 rounds
- Best Against: Standard zombies, crowd control
Usage Tactics:
- Spray and Pray for Crowds - Hold fire button on dense groups
- Lead Your Shots - Aim slightly ahead of fast targets
- Reload Management - Reload during lulls, not mid-attack
Upgrade Priority:
- Damage (+25%) - Most important
- Fire Rate (+15%) - Second priority
- Reload Speed (-20% time) - Third priority
Rocket Launcher
Specifications:
- Damage: 200 per rocket (base)
- Splash Radius: 5 meters
- Reload Time: 4 seconds
- Best Against: Tank zombies, clusters, runners
Usage Tactics:
- Aim for Groups - Splash damage hits multiple targets
- Tank Elimination - Use 2-3 rockets per Tank zombie
- Emergency Use - Runner approaching gate fast? Rocket it
Upgrade Priority:
- Damage (+30%) - Eliminates tanks faster
- Reload Speed (-25% time) - More shots available
- Splash Radius (+20%) - Hits more zombies
Drone Control System
How It Works: You directly pilot the drone during attacks using mouse/joystick control for movement, Q key for weapon switch, and left click to fire.
Drone Advantages:
- See entire battlefield
- Quick weapon switching
- Precise targeting
- Tactical positioning
Combat Tactics & Strategies
The Wave Defense Formula
Phase 1: Opening (First 30 seconds)
- Zombies spawn at distance
- Use mini-gun on approaching groups
- Identify special zombie types
- Mark priority targets (Tanks, Runners)
Phase 2: Mid-Wave (30 seconds - 2 minutes)
- Zombies reach mid-field
- Switch between weapons based on enemy type
- Focus fire on Tanks
- Keep zombies away from gate
Phase 3: Crisis Point (Last 1-2 minutes)
- Zombies reach gate
- Maximum intensity
- Emergency rocket use
- Prevent gate breach at all costs
Target Priority System
Priority 1 (Shoot First):
- 🚨 Runners within 10 meters of gate
- 🚨 Any zombie touching the gate
Priority 2 (Shoot Second):
- ⚠️ Tank zombies in mid-field
- ⚠️ Runner clusters
- ⚠️ Large groups of standard zombies
Priority 3 (Shoot Last):
- 👁️ Slow standard zombies at distance
- 👁️ Isolated stragglers
Weapon Rotation Strategy
Standard Approach (Works 80% of the time):
- Mini-gun for 70% of engagement - Main weapon for standard zombies
- Rockets for 30% of engagement - Special zombies and emergencies
Advanced Approach (For difficult waves):
- Opening: Mini-gun exclusively
- Mid-wave: 60% mini-gun, 40% rockets
- Crisis: 40% mini-gun, 60% rockets
Defense Phases Strategy
Early Game Defense (Attacks 1-2)
Challenges:
- Limited weapon upgrades
- Lower damage output
- Learning combat mechanics
Strategy:
- Focus on mini-gun primarily
- Save rockets for runners
- Maintain safe distance
- Prioritize gate protection
Survival Tips:
- Upgrade mini-gun damage before Attack 2
- Practice aim in Attack 1
- Don’t panic-fire rockets
- Stay calm and methodical
Mid Game Defense (Attacks 3-5)
Challenges:
- Tank zombies appear
- Mixed enemy types
- Longer attack duration
Strategy:
- Aggressive rocket use on Tanks
- Mini-gun for standard mobs
- Quick target switching
- Efficient ammo management
Key Upgrades Needed:
- Mini-gun damage +25%
- Rocket damage +30%
- Rocket reload speed improved
Late Game Defense (Attacks 6+)
Challenges:
- Massive zombie counts (150-200)
- All special types present
- Multiple Tanks simultaneously
Strategy:
- Continuous firing (no breaks)
- Rapid weapon switching
- Prioritize gate health over kills
- Use all available upgrades
Upgrade Path Guide
Essential Upgrades (Get These First)
Week 1 Priority:
- Mini-Gun Damage +25% ($150) - Get before Attack 2
- Fuel Storage Expansion ($120) - Prevents mid-defense power loss
Week 2 Priority: 3. Rocket Damage +30% ($180) - Essential for Tanks 4. Rocket Reload Speed -25% ($160) - More shots per minute
Advanced Upgrades (Get When Possible)
Week 3+ Priority: 5. Mini-Gun Fire Rate +15% ($200) 6. Mini-Gun Reload Speed -20% ($140) 7. Rocket Splash Radius +20% ($190) 8. Drone Durability +30% ($220)
Common Defense Failures
❌ Failure Mode #1: Tunnel Vision
Symptom: Focusing on one zombie while others reach gate
Solution: Regular camera pans, check gate health frequently
❌ Failure Mode #2: Ammunition Waste
Symptom: Running dry on rockets during crisis
Solution: Save rockets for Tanks and emergencies
❌ Failure Mode #3: Poor Positioning
Symptom: Drone surrounded, taking heavy damage
Solution: Maintain altitude and distance
❌ Failure Mode #4: Panic Firing
Symptom: Wild shooting, missing most shots
Solution: Deep breaths, methodical targeting
❌ Failure Mode #5: Ignoring Runners
Symptom: Fast zombies breach gate unexpectedly
Solution: Runners are always Priority 1
Emergency Protocols
When Gate Health Drops Below 50%
Actions:
- Switch to maximum aggression
- Use all available rockets
- Ignore ammo conservation
- Focus exclusively on nearest threats
When Drone Health Critical
Actions:
- Retreat to maximum distance
- Continue firing while retreating
- Land if necessary to repair
- Re-engage when health restored
When Overwhelmed
Actions:
- Use rocket barrage (all remaining)
- Focus on creating breathing room
- Retreat and reposition
- Call for support systems if available
Quick Combat Reference
🎯 PRIORITY TARGETS
- Runners near gate
- Zombies touching gate
- Tank zombies mid-field
- Dense clusters
- Standard zombies
⚔️ WEAPON SELECTION
- Standard zombies → Mini-gun
- Tank zombies → Rockets (2-3)
- Runners → Rockets (1-2)
- Clusters (5+) → Rockets
- Emergency → Rockets
- Default → Mini-gun
🛡️ SURVIVAL RULES
- Never let zombies surround drone
- Keep gate health above 50%
- Save rockets for emergencies
- Maintain distance from horde
- Stay calm under pressure
Conclusion
Defense in Quarantine Zone requires skill, strategy, and constant improvement. Master these principles:
- Upgrade Early and Often - Don’t face hordes with base weapons
- Prioritize Correctly - Runners and Tanks always first
- Stay Calm - Panic leads to mistakes and failure
- Practice Makes Perfect - Each defense teaches valuable lessons
Your checkpoint’s survival depends on your combat abilities. Train hard, upgrade smart, and never underestimate the horde.
Next Steps:
- 📖 Beginner’s Guide - Foundation knowledge for new players
- 📖 Base Management Guide - Fund your weapon upgrades
- 📖 Demo Walkthrough - Practice combat safely
Related Guides
Quarantine Zone Beginner Guide - Essential Tips
Complete beginner's guide for Quarantine Zone. Learn checkpoint operations, survivor screening, infection detection, and base defense.
Quarantine Zone Base Management - Resources & Upgrades
Master base management in Quarantine Zone. Learn resource allocation, upgrade priorities, budget management, and facility optimization.