diff --git a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/antimateriel.yml b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/antimateriel.yml
index 77fe197201b..bb283e700dd 100644
--- a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/antimateriel.yml
+++ b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Cartridges/antimateriel.yml
@@ -7,6 +7,7 @@
   - type: Tag
     tags:
     - CartridgeAntiMateriel
+    - CartridgeLMGAntiMateriel # DeltaV - for piercing qualities
   - type: CartridgeAmmo
     proto: BulletAntiMateriel
   - type: Sprite
diff --git a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Projectiles/antimateriel.yml b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Projectiles/antimateriel.yml
index 1af450c59e3..34581e3d106 100644
--- a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Projectiles/antimateriel.yml
+++ b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Ammunition/Projectiles/antimateriel.yml
@@ -15,3 +15,10 @@
     - Structural
   - type: StaminaDamageOnCollide
     damage: 60
+  - type: PiercingProjectile # DeltaV - pierces up to 3 walls/windows
+    pierceCounterWhitelist:
+      tags:
+      - Wall
+      - Window
+    maxPierceNumberThreshold: 3 # this seems to not work
+    healthThreshold: 200 # Normal walls have a threshold of 200.
diff --git a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Snipers/snipers.yml b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Snipers/snipers.yml
index e36a874229c..4cdf6d95fd9 100644
--- a/Resources/Prototypes/Entities/Objects/Weapons/Guns/Snipers/snipers.yml
+++ b/Resources/Prototypes/Entities/Objects/Weapons/Guns/Snipers/snipers.yml
@@ -114,6 +114,9 @@
     sprite: Objects/Weapons/Guns/Snipers/heavy_sniper.rsi
   - type: GunRequiresWield
   - type: Gun
+    minAngle: 20 # DeltaV - add needing bipod
+    maxAngle: 32 # DeltaV - add needing bipod
+    angleIncrease: 10
     fireRate: 0.4
     selectedMode: SemiAuto
     availableModes:
@@ -131,10 +134,22 @@
     sprintModifier: 0.25
   - type: CursorOffsetRequiresWield
   - type: EyeCursorOffset
-    maxOffset: 3
+    maxOffset: 4 # DeltaV - was 3
     pvsIncrease: 0.3
   - type: StaticPrice
     price: 3500
+  # DeltaV changes - bipod
+  - type: GunWieldBonus # Can't be shot without wielding anyways
+    minAngle: 0
+    maxAngle: 0
+  - type: GunBipod
+    minAngle: -20
+    maxAngle: -30
+    angleDecay: 0
+    fireRateIncrease: .2
+  - type: ClothingSpeedModifier # Big sniper makes you move slower
+    sprintModifier: 0.9
+  # DeltaV changes end
 
 # Start DeltaV removals
 #- type: entity