[ENTRY C1: TITAN CLASSIFICATION]
Understanding Titans is the first step to killing them.
By Size:
3-7 Meter Class:
Fast, agile
Often found in buildings
Kill method: Standard nape strike
Danger: Speed, unexpected movement
"Fast little bastards. Don't underestimate them because they're small."
7-15 Meter Class:
Most common
Balanced speed and strength
Kill method: Standard tactics
Danger: Reach, crushing power
15-20 Meter Class:
Slower, more powerful
Often Deviants
Kill method: Coordinated squad attack
Danger: Wide swings, long reach
20+ Meter Class:
Rare, devastating
Colossal Titan (60m) in this category
Kill method: Unknown (none successfully killed)
Danger: Everything
By Behavior:
Normal Titans:
Wander aimlessly
Attack humans on sight
Active during day, sluggish at night
Predictable patterns
Deviants:
Erratic behavior
Sometimes run, jump, or dodge
May prioritize specific targets
Extremely dangerous
"They're learning. Every year, they get smarter."
Abnormals:
Extreme deviations
Unique abilities or behaviors
Often larger or faster
Squad-level threats
[ENTRY C2: THE NAPE — TARGETING EXPLANATION]
Why the Nape?
Titans have one weak point: the nape of the neck. A deep cut through this area kills them instantly. No other injury matters—decapitation, dismemberment, crushing—they all regenerate.
Anatomy:
The nape contains the spinal cord extension and, according to recent theories, possibly the Titan's "core." Sever this, and the Titan dies.
Target Area:
Located at the base of the skull
Approximately 1 meter long, 0.5 meter wide on average Titan
Protected by tough skin but no bone armor (except Armored Titan variant)
Cut Depth Requirements:
Minimum 1 meter deep
Must sever completely
Single clean cut ideal—multiple cuts waste time
Training Note:
"Aim for the center. Always the center. Too high, you miss the spine. Too low, you hit shoulders. Center. Center. Center."
— ODM Instructor
[ENTRY C3: SOLO VS. SQUAD TACTICS]
Solo Engagement:
Used when:
Squad is scattered
Titan is isolated
No other options
Technique:
Approach from behind (Titans have poor peripheral vision)
Anchor to nearby structure
Swing at high speed
Strike nape in single pass
Continue momentum to escape
Success Rate: 40% (veterans), 15% (recruits)
Fatality Rate: 30% (veterans), 70% (recruits)
Squad Engagement:
Used when:
Multiple Titans present
Titan is larger or Deviant
Formation requires defense
Standard Squad Composition:
4-6 soldiers
1 squad leader (signals, coordination)
2-3 attackers
1-2 spotters/emergency backup
Technique:
Spotters identify nape and threats
Attackers coordinate approach from multiple angles
Primary strike delivered by first attacker
Backup strikes if primary fails
All soldiers maintain escape routes
Success Rate: 75%
Casualty Rate: 20%
[ENTRY C4: FORMATION TACTICS — LONG-RANGE SCOUTING]
Long-Range Scouting Formation:
Developed by Commander Erwin. Standard for expeditions beyond the walls.
Structure:
Vanguard: Lead scouts, 100-200 meters ahead
Flank Guards: Left and right sides, watching for attacks
Central Unit: Main force, including Eren (after his discovery)
Rear Guard: Protect against pursuit
Supply Unit: Horses, equipment, reserves
Principles:
Maximize visual coverage
Allow early Titan detection
Provide multiple escape routes
Sacrifice periphery to protect center
Weaknesses:
Spread thin—easy to penetrate
Communication delays
Vulnerable to coordinated attacks
High casualty rates on flanks
Erwin's Philosophy:
"The formation doesn't protect soldiers. It protects information. Soldiers die. Information lives. That's the trade."
[ENTRY C5: URBAN COMBAT TACTICS]
Fighting in cities requires different approaches:
Streets:
Dangerous—open sightlines, limited anchor points
Avoid whenever possible
Use rooftops and walls
Buildings:
Excellent anchor points
Provide cover and concealment
Watch for Titans reaching through windows
Know escape routes before entering
Rooftops:
Primary movement routes
Good visibility
Exposed to Titan grabs
Maintain spacing—don't cluster
Gates:
Strategic chokepoints
Heavily defended
Titans often concentrate here
Garrison handles gate defense; Scouts handle interior
Civilian Considerations:
Clear areas before engaging
Direct civilians to shelters
Avoid leading Titans toward populated zones
Accept that some civilians will die—focus on saving more
[ENTRY C6: FOREST COMBAT TACTICS]
Forests offer unique advantages and dangers:
Advantages:
Abundant anchor points
Limited Titan movement (large Titans struggle between trees)
Cover and concealment
Multiple escape routes
Dangers:
Limited visibility
Titans can hide behind trees
Branches can snag gear
Disorientation common
Techniques:
Stay high—canopy level
Use trees as shields
Watch for Titans using trees as weapons
Communicate constantly—visual signals only (flares)
The Forest of Giant Trees:
Special case. Trees hundreds of meters tall. Ideal ODM environment. Used for:
Training exercises
Ambush preparation
Eren protection (57th Expedition)
[ENTRY C7: NIGHT OPERATIONS]
Titans become less active at night. This creates opportunities:
Advantages:
Fewer Titans active
Slower reactions
Can sometimes move without detection
Disadvantages:
Limited visibility
ODM gear harder to aim
Disorientation common
Exhaustion from daytime fighting
Techniques:
Move in close formation
Use flares for illumination
Rest in shifts
Avoid engagement if possible—wait for dawn
Veteran's Wisdom:
"Night is for moving, not fighting. If you're fighting at night, something went wrong."
[ENTRY C8: TITAN AVOIDANCE — SURVIVAL PRIORITIES]
Sometimes the best tactical decision is not to fight:
Priority 1: Escape
Break line of sight
Use terrain to block pursuit
Titans have poor tracking once you're hidden
Priority 2: Hide
Buildings, caves, dense forest
Remain absolutely still
Titans detect movement, not scent or sound
Priority 3: Sacrifice Speed
Drop heavy equipment if necessary
Cut horse loose if it's slowing you
One soldier escaping is better than two dying
Priority 4: Last Resort Fighting
Only engage if escape impossible
Aim for crippling shots (eyes, legs) to enable escape
Don't die for pride—die for survival
[ENTRY S1: STANDARD SQUAD STRUCTURE]
A Survey Corps squad typically consists of 4-6 soldiers:
Squad Leader:
Experienced veteran
Carries multiple flare colors
Makes tactical decisions
Coordinates with other squads
Expected to survive to report
Attackers (2-3 soldiers):
Primary Titan killers
Best ODM skills
Carry extra blades
Focus on nape strikes
Support/Spotter (1-2 soldiers):
Watch for approaching Titans
Call out threats and opportunities
Provide emergency backup
Carry smoke bombs and signals
Role Flexibility:
All soldiers must be able to perform any role. Deaths are random. The squad continues.
[ENTRY S2: LEVI SQUAD — ELITE UNIT ANALYSIS]
Levi's personal squad (prior to 57th Expedition) represented the pinnacle of Survey Corps organization:
Members:
Petra Ral (attacker)
Oluo Bozado (attacker)
Eld Gin (attacker)
Gunther Schultz (attacker/support)
Captain Levi (commander)
Tactics:
Levi engages primary threat
Squad handles secondary threats
Coordinated attacks from multiple angles
Extreme speed and precision
No wasted movement
Loss Impact:
The complete destruction of Levi Squad during the 57th Expedition represented:
Loss of 4 elite soldiers (years of training each)
Psychological damage to Levi
Tactical setback for Survey Corps
Warning about Female Titan's capabilities
Surviving Records:
"They were the best. Not just good—the best. And they died like everyone else. Fast. Ugly. Meaningless."
— Anonymous Veteran
[ENTRY S3: COMMUNICATION METHODS]
Without radios, Scouts communicate through:
Flare Signals:
Green: Titan sighted
Red: Emergency/Retreat
Black: Commander's signal (varies by mission)
White: All clear/Resume formation
Multiple flares: Priority threat
Hand Signals:
Raised fist: Stop/Hold
Pointed fingers: Direction
Open hand: Spread out
Closed fist: Gather
Throat cut: Titan behind
Verbal (Close Range):
Short commands only
"Left!" "Right!" "Up!" "Down!" "Now!"
Names only for critical warnings
Horse Signals:
Whistles for basic commands
Reins for direction
Speed determined by leg pressure
[ENTRY S4: HORSES — THE UNSUNG HEROES]
Horses are essential to Survey Corps operations:
Role:
Transport to engagement zones
Supply carrying
Retreat mobility
Emotional support (veterans form strong bonds)
Training:
Conditioned to Titan presence
Trained to follow ODM signals
Can run for hours at sustained speed
Bond with specific riders
Casualty Rates:
Higher than soldiers in some expeditions
Replaceable but not disposable
Loss of horse often means loss of rider
Veteran's Note:
"My horse saved my life six times. Name was Thunder. When he died, I cried harder than for most people. Don't tell anyone."