Metal Maiden Depot, a Metal Waltz database

Last updated : 2025-09-11 00:16:47
Profile updated to game version : 1.9.8.12

{{Infobox_Metal_Maiden_Profile
 | model                                        = FV304
 | name                                                = Joanna Wilson
 | character_portrait_image                        = FV304.png
 | rarity                                        = gold
 | type                                                = spg
 | nation                                        = Britannia
 | character_voice                                = 
 | live2d                                        = 0
}}

==Quote==

==Attributes==
{{Infobox_Metal_Maiden_Statistics
 | firepower                                = 739
 | penetration                                = 308
 | durability                                = 639
 | armor                                = 221
 | targeting                                = 90
 | evasion                                = 140
 | stealth                                = 95
 | detection                                = 65
 | range_min                                = 1 630
 | range_max                                = 2 520
 | fire_resist                                = B
 | crit_resist                                = A
 | crit_defense                                = A
}}
{{Infobox_Metal_Maiden_Lifestyle
 |skill_1                        = crafting
 |skill_1_level                        = 1
 |skill_2                        = nursing
 |skill_2_level                        = 3
 |skill_3                        = 
 |skill_3_level                        = 
}}
{{Infobox_Metal_Maiden_Equipment
 | max_rank                        = 3
 | slot_1                        = turret
 | slot_2                        = mod
 | slot_3                        = mod
 | slot_4                        = internal
 | slot_5                        = internal
 | slot_6                        = carriage
 | slot_7                        = special
 | slot_8                        = raid_A.T.E.
 | ap                                = 1
 | apcr                                = 0
 | apds                                = 0
 | he                                = 1
 | heat                                = 1
 | hesh                                = 0
 | rp                                = 0
 | c_proof                        = 0
 | d_proof                        = 1
 | h_proof                        = 1
 | s_proof                        = 0
 | w_proof                        = 0
 | silent                        = 0
 | armor                        = light
 | angled                        = 1
 | flat-top                        = 1
 | front                        = 0
 | light                        = 0
 | low                        = 1
 | rear                        = 1
 | sloped                        = 0
 | tires                        = 0
 | treads                        = 1
}}

==Requirements==
<tabber>
Refactor =<div title>[[File:Base_BWMG_depot.png]]
Appears in BWMG Depot 3</div>
|-|
Method 1 =<div title>{{Infobox_Metal_Maiden_Requirements_RD
 | metal_maiden_1 = A39 AT8
 | metal_maiden_1_rarity = Gold
 | metal_maiden_1_level = 85
 | metal_maiden_1_rank = 
 | metal_maiden_2 = Birch Gun Mk.II
 | metal_maiden_2_rarity = Purple
 | metal_maiden_2_level = 75
 | metal_maiden_2_rank = 
 | metal_maiden_3 = A25 Alecto mk.IV
 | metal_maiden_3_rarity = Gold
 | metal_maiden_3_level = 85
 | metal_maiden_3_rank = 
 | blueprint_rank = 6
 | blueprint_quantity = 42
 | resource = Wreck
 | resource_quantity = 469
 | equipment = Trail
 | equipment_rank = S5
 | equipment_slot = carriage
 | equipment_quantity = 1
 | silver_quantity = 4 330 000


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}}</div>
|-|
</tabber>

==Technology==

==Illustration==


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		{| class="mw-collapsible mw-collapsed wikitable"
		! Full illustration
		|-
		| [[File:FV304_full.png]]
		|}

{{Infobox_Metal_Maiden_Statistics
 | firepower                                = 739
 | penetration                                = 308
 | durability                                = 639
 | armor                                = 221
 | targeting                                = 90
 | evasion                                = 140
 | stealth                                = 95
 | detection                                = 65
 | range_min                                = 1 630
 | range_max                                = 2 520
 | fire_resist                                = B
 | crit_resist                                = A
 | crit_defense                                = A
}}

	FV304
	Joanna Wilson

Unlocks

Nothing

Category	Self-Propelled Gun
Armor	Light
Nation	Britannia
Rarity	Gold
Blueprint Rank	N6-
Live2D	Not available

Talents

	Crafting	1
	Nursing	3

Basic equipment slots

Additionnal Raid slots

Additionnal Fate slots
Unknown

Shells

	[AP] Conventional
	[HE] High-Explosive
	[HEAT] Anti-Tank

Attributes :

value at level 1
+ increase per level
value at level 99

Attribute's icon

Attribute's name
Rank in SPG category for this attribute (97 vehicles in this category)
Click here to see rankings
Δ ± deviation from the median value for this attribute at level 99

739
+19.39
2639

Firepower
Ranked 54
Δ -131

308
+8.61
1151

Penetration
Ranked 22
Δ +109

Targeting
Ranked 15
Δ -10

639
+19.81
2580

Durability
Ranked 41
Δ +0

221
+6.31
838

Armor
Ranked 31
Δ +40

140

Evasion
Ranked 4
Δ +65

Stealth
Ranked 9
Δ +10

Detection
Ranked 12
Δ +5

B
64

Fire resistance
10 Δ +6

A
74

Critical resistance
8 Δ +6

A
74

Critical defense
9 Δ -2

Active Skills :

Click on skills to show their effects

	Bracket Shot Shelling Skill
1. Startup: Shelling Stage Deals 4312..10164 damage (135% damage), target's range is reduced by 35%

	Pressing Fire Shelling Skill
1. Startup: Shelling Stage Deals 2x4494..10593 damage to target (85% damage)

	Support Cannon Shelling Skill
1. Startup: Shelling Stage Calls air support at any range attacking 8 times for 4137..X damage with high crit chance (15% damage)

	Volley Fire Shelling Skill
1. Startup: Shelling Stage Attack 3 targets, dealing 5180..12210 damage (55% damage)

Chassis properties

	Angled Immune to [Broad] terrain effect : [Plains] [Plains] During Shelling stage, Firepower is drastically reduced
	Flat top Increases ricochet chance for [AP] and [AT] attacks
	Low Immune to [Trap] terrain effect : [Street] [Street] Troughout the battle, chance of being hit by a critical hit is increased (Critical resistance down)
	Rear Immune to [Swamp] terrain effect : [Dirt] [Dirt] Troughout the battle, Penetration is reduced
	Treads Immune to [Snowy] terrain effect : [Snow] [Snow] Troughout the battle, Evasion is reduced

Engine properties

	D proof Immune to [Dusty] terrain effect : [Desert] [Desert] Troughout the battle, Damage received is increased
	H proof Immune to [Hot] terrain effect : [Desert] [Desert] Troughout the battle, Fire resistance is drastically reduced

Mouseover buff icons to show their properties

Tier 1

HP DP Engine
Detection icon

Tier 2

HP DP Engine II
Detection icon

Tier 3

HP DP Engine III
Detection icon

Tier 1

Infantry Chassis
Durability icon

200

100

Tier 1

Bottom-Heavy Chassis
Durability icon

405

Tier 2

Infantry Chassis II
Durability icon

965

300

Tier 2

Bottom-Heavy Chassis II
Durability icon

1170

230

Tier 3

Infantry Chassis III
Durability icon

1295

520

120

Tier 3

Bottom-Heavy Chassis III
Durability icon

1870

350

100

Tier 1

Light Welded Rolled Armor
Armor icon

Tier 1

Light Hardened Welded Armor
Armor icon

Tier 1

Light Composite Armor
Armor icon

175

Tier 1

Light Tempered Upgraded Armor
Armor icon

Tier 2

Light Welded Rolled Armor II
Armor icon

175

Tier 2

Light Hardened Welded Armor II
Armor icon

235

Tier 2

Light Composite Armor II
Armor icon

360

Tier 2

Light Tempered Upgraded Armor II
Armor icon

190

Tier 3

Light Welded Rolled Armor III
Armor icon

260

Tier 3

Light Hardened Welded Armor III
Armor icon

370

100

Tier 3

Light Tempered Upgraded Armor III
Armor icon

290

100

Tier 3

Light Composite Armor III
Armor icon

540

[AP] Conventional

Tier 1	Level 1	APBC (L) 1507515
Range	1630

Tier 2	Level 1	APCBC (L) 52522535
Range	1630

Tier 3	Level 2	APCBC-T (L) 109535055
Range	1630

[HE] High-Explosive

Tier 1	Level 1	HE-F (M) 3105
Range	4920

Tier 1	Level 2	SSHE (M) 2655535
Range	5360

Tier 1	Level 4	HE-I (M) 42055
Range	4920

Tier 1	Level 5	LDHE (M) 4956055
Range	5360

Tier 1	Level 6	Concave HE (M) 5108045
Range	4920

Tier 2	Level 1	Concave Canister HE-F (M) 11052565
Range	4920

Tier 2	Level 2	Concave HE-T (M) 85513070
Range	5360

Tier 2	Level 4	Concave HE-I (M) 102513080
Range	4920

Tier 2	Level 5	BBERHE (M) 111512580
Range	5360

Tier 2	Level 6	HEDM HE (M) 108516515
Range	5360

Tier 3	Level 1	Concave HCHE-I (M) 1450180110
Range	4920

Tier 3	Level 2	Concave Elongated HCHE-T (M) 1425215115
Range	5360

Tier 3	Level 3	RPBBERHE (M) 161518095
Range	5360

Tier 3	Level 4	Concave Shrapnel HE-F (M) 213550125
Range	4920

Tier 3	Level 6	Active HEDM HE (M) 165525025
Range	5360

[HEAT] Anti-Tank

Tier 1	Level 1	HEAT (M) 26050
Range	2520

Tier 1	Level 6	Shaped WSAT (M) 230235
Range	2520

Tier 2	Level 3	FSHEAT (M) 106017075
Range	2520

Tier 2	Level 6	Shaped WSFSAT (M) 48547590
Range	2520

Tier 3	Level 3	CFS HEAT (M) 1955275120
Range	2520

Tier 3	Level 6	Shaped CFS WSAT (M) 745715130
Range	2520

Illustration :

Main Illustration

Refactor

Appears in BWMG Depot LV 3

Method 1

Level 85

A39 AT8

Level 75

Birch Gun Mk.II

Level 85

A25 Alecto mk.IV

Wreck
x 469

Blueprint N6
x 42

S 5

Trail
x 1

Silver
x 4 330 000

Warning : This is only an approximation and a work-in-progress.

Some metal maidens may have more than one type of engine/chassis and therefore can not accumulate all the bonuses from theirs engines/chassis at the same time.
You also have to take into account the range of the ammo available for your metal maiden for each terrains

Dirt streets

Adequate equipment : 2 out of 3

- Detection

Missing: [w proof]

Rocky streets

Adequate equipment : 1 out of 3

- Armor
- Targeting

Missing: [w proof] [tires] [light]

Snow streets

Adequate equipment : 2 out of 3

- Damage received

Missing: [w proof] [tires] [light] [c proof]

Grass forest

Adequate equipment : 0 out of 1

- Firepower

Missing: [w proof] [tires] [light] [c proof] [front]

Dirt forest

Adequate equipment : 1 out of 3

- Detection
- Firepower

Missing: [w proof] [tires] [light] [c proof] [front]

Rocky forest

Adequate equipment : 0 out of 3

- Armor
- Targeting
- Firepower

Missing: [w proof] [tires] [light] [c proof] [front]

Snow forest

Adequate equipment : 1 out of 3

- Damage received
- Firepower

Missing: [w proof] [tires] [light] [c proof] [front]

Grass hills

Adequate equipment : 0 out of 1

- Evasion

Missing: [w proof] [tires] [light] [c proof] [front] [s proof]

Desert hills

Adequate equipment : 2 out of 3

- Evasion

Missing: [w proof] [tires] [light] [c proof] [front] [s proof]

Desert plains

Adequate equipment : 3 out of 3

Missing: [w proof] [tires] [light] [c proof] [front] [s proof]