Zombie Mode [New Game Mode] (#8501)

Co-authored-by: Kara <lunarautomaton6@gmail.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Resources/Prototypes/Entities/Clothing/Head/hardsuit-helmets.yml

@@ -405,6 +405,56 @@
         Heat: 0.2
         Radiation: 0.5
 
+- type: entity
+  parent: ClothingHeadHardsuitWithLightBase
+  id: ClothingHeadHelmetCBURN
+  noSpawn: true
+  name: syndicate elite helmet
+  description: A pressure resistant and fireproof hood worn by special cleanup units.
+  components:
+  - type: Sprite
+    netsync: false
+    sprite: Clothing/Head/Hardsuits/cburn.rsi
+    layers:
+    - state: icon
+    - state: icon-unshaded
+      shader: unshaded
+    - state: light-overlay
+      visible: false
+      shader: unshaded
+      map: [ "light" ]
+  - type: Clothing
+    clothingVisuals:
+      head:
+      - state: equipped-head
+      - state: equipped-head-unshaded
+        shader: unshaded
+    inhandVisuals:
+      left:
+      - state: inhand-left
+      - state: inhand-left-unshaded
+        shader: unshaded
+      right:
+      - state: inhand-right
+      - state: inhand-right-unshaded
+        shader: unshaded
+  - type: PointLight
+    color: orange
+  - type: PressureProtection
+    highPressureMultiplier: 0.08
+    lowPressureMultiplier: 1000
+  - type: TemperatureProtection
+    coefficient: 0.005    
+  - type: Armor
+    modifiers:
+      coefficients:
+        Blunt: 0.9
+        Slash: 0.9
+        Piercing: 0.9
+        Heat: 0.1
+        Shock: 0.1
+        Cold: 0.2
+        Radiation: 0.2
 
 #ERT
 - type: entity

Resources/Prototypes/Entities/Clothing/OuterClothing/hardsuits.yml

@@ -571,6 +571,38 @@
   - type: ToggleableClothing
     clothingPrototype: ClothingHeadHelmetHardsuitSyndieElite
 
+- type: entity
+  parent: ClothingOuterHardsuitBase
+  id: ClothingOuterHardsuitCBURN
+  name: CBURN exosuit
+  description: A lightweight yet strong exosuit used for special cleanup operations.
+  components:
+  - type: Sprite
+    sprite: Clothing/OuterClothing/Hardsuits/cburn.rsi
+  - type: Clothing
+    sprite: Clothing/OuterClothing/Hardsuits/cburn.rsi
+  - type: PressureProtection
+    highPressureMultiplier: 0.02
+    lowPressureMultiplier: 1000
+  - type: ClothingSpeedModifier
+    walkModifier: 1.0
+    sprintModifier: 1.0
+  - type: TemperatureProtection
+    coefficient: 0.001    
+  - type: Armor
+    modifiers:
+      coefficients:
+        Blunt: 0.7
+        Slash: 0.7
+        Piercing: 0.6
+        Heat: 0.05
+        Cold: 0.1
+        Shock: 0.1
+        Radiation: 0.1
+  - type: ExplosionResistance
+    resistance: 0.7
+  - type: ToggleableClothing
+    clothingPrototype: ClothingHeadHelmetCBURN
 
 #ERT
 - type: entity

Resources/Prototypes/Entities/Mobs/NPCs/human.yml

@@ -34,6 +34,20 @@
     - Idle
     - Spirate
 
+- type: entity
+  parent: MobHuman
+  id: MobCBURNUnit
+  name: CBURN Agent
+  description: A miserable pile of secrets
+  components:
+  - type: RandomHumanoidAppearance
+  - type: Loadout
+    prototype: CBURNGear
+  - type: GhostTakeoverAvailable
+    makeSentient: false
+    name: CBURN Agent
+    description: A highly trained Centcomm agent, capable of dealing with various threats.
+
 - type: entity
   parent: MobHumanBase
   suffix: Dead