diff --git a/crates/helm-bridge/src/lib.rs b/crates/helm-bridge/src/lib.rs
index 28452ac..6225def 100644
--- a/crates/helm-bridge/src/lib.rs
+++ b/crates/helm-bridge/src/lib.rs
@@ -189,6 +189,9 @@ pub const CATALOGUE_FIELDS: &[&str] = &[
     "kgPerShot",
     "shots",
     "damageShort",
+    // An infantry armour kit's, which is what a platoon has instead of
+    // armour points.
+    "damageDivisor",
     "explosive",
     "heat",
     "longRange",
@@ -393,6 +396,9 @@ fn equipment_record(v: &Value) -> Option<EquipmentEntry> {
         variable_battle_value: f(v, "bv").is_some_and(|b| b <= i32::MIN as f64),
         cost: f(v, "cost"),
         damage_capacity: i(v, "baseDamageCapacity").filter(|c| *c > 0),
+        // Only an infantry armour kit has one, and MegaMek writes 1.0 on the
+        // rest of MiscType rather than leaving it out.
+        damage_divisor: f(v, "damageDivisor"),
         flags: v
             .get("_flags")
             .and_then(Value::as_array)
diff --git a/crates/helm-core/src/bv.rs b/crates/helm-core/src/bv.rs
index d8725d1..9598b91 100644
--- a/crates/helm-core/src/bv.rs
+++ b/crates/helm-core/src/bv.rs
@@ -57,6 +57,38 @@ impl BvBreakdown {
     }
 }
 
+/// MegaMek's `bvMultipliers`, indexed `[gunnery][piloting]` and clamped to
+/// 0..=8 at both ends the way `BVCalculator.bvSkillMultiplier` clamps.
+///
+/// Transcribed rather than derived: there is no formula behind it, it is a
+/// published table, and a plausible-looking curve fitted to it would be wrong
+/// in the corners.
+///
+/// It lives here rather than beside the crew that usually reads it because a
+/// conventional infantry platoon needs it too: a platoon that can climb a Mek
+/// without the gear for it is scored as untrained at it, and that is a
+/// property of the design rather than of anybody flying it.
+#[rustfmt::skip]
+const BV_MULTIPLIERS: [[f64; 9]; 9] = [
+    [2.42, 2.31, 2.21, 2.10, 1.93, 1.75, 1.68, 1.59, 1.50],
+    [2.21, 2.11, 2.02, 1.92, 1.76, 1.60, 1.54, 1.46, 1.38],
+    [1.93, 1.85, 1.76, 1.68, 1.54, 1.40, 1.35, 1.28, 1.21],
+    [1.66, 1.58, 1.51, 1.44, 1.32, 1.20, 1.16, 1.10, 1.04],
+    [1.38, 1.32, 1.26, 1.20, 1.10, 1.00, 0.95, 0.90, 0.85],
+    [1.31, 1.19, 1.13, 1.08, 0.99, 0.90, 0.86, 0.81, 0.77],
+    [1.24, 1.12, 1.07, 1.02, 0.94, 0.85, 0.81, 0.77, 0.72],
+    [1.17, 1.06, 1.01, 0.96, 0.88, 0.80, 0.76, 0.72, 0.68],
+    [1.10, 0.99, 0.95, 0.90, 0.83, 0.75, 0.71, 0.68, 0.64],
+];
+
+/// The battle value multiplier for a gunnery and piloting pair, clamped like
+/// MegaMek's.
+pub fn bv_skill_multiplier(gunnery: u8, piloting: u8) -> f64 {
+    let g = (gunnery as usize).min(8);
+    let p = (piloting as usize).min(8);
+    BV_MULTIPLIERS[g][p]
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/crates/helm-core/src/catalogue.rs b/crates/helm-core/src/catalogue.rs
index d790270..445c4cf 100644
--- a/crates/helm-core/src/catalogue.rs
+++ b/crates/helm-core/src/catalogue.rs
@@ -97,6 +97,12 @@ pub struct EquipmentEntry {
     /// Armour points this item carries in its own right. Modular armour is
     /// the case that matters: it is armour bolted on, and it counts as armour.
     pub damage_capacity: Option<i64>,
+    /// What an infantry armour kit divides incoming damage by.
+    ///
+    /// A platoon's protection is not armour points but this: a kit rated 2
+    /// halves what reaches the troopers, and battle value charges for it
+    /// directly. Only armour kits carry one; everything else is `None`.
+    pub damage_divisor: Option<f64>,
     /// Whether this item's battle value depends on the design carrying it.
     ///
     /// A hatchet is worth a fifth of the Mek swinging it, so the catalogue
diff --git a/crates/helm-core/src/lib.rs b/crates/helm-core/src/lib.rs
index 3093338..1c54cd3 100644
--- a/crates/helm-core/src/lib.rs
+++ b/crates/helm-core/src/lib.rs
@@ -32,7 +32,7 @@ mod rng;
 mod structure;
 mod unit;
 
-pub use bv::{BvBreakdown, RATING_TOLERANCE};
+pub use bv::{BvBreakdown, RATING_TOLERANCE, bv_skill_multiplier};
 pub use catalogue::{Catalogue, EquipmentEntry};
 pub use computed::{AlphaStrike, ComputedStats};
 pub use design::{
diff --git a/crates/helm-force/src/pilot.rs b/crates/helm-force/src/pilot.rs
index cf3d4dd..1cab03e 100644
--- a/crates/helm-force/src/pilot.rs
+++ b/crates/helm-force/src/pilot.rs
@@ -47,30 +47,12 @@ impl Pilot {
     }
 }
 
-/// MegaMek's `bvMultipliers`, indexed `[gunnery][piloting]` and clamped to
-/// 0..=8 at both ends the way `BVCalculator.bvSkillMultiplier` clamps.
-///
-/// Transcribed rather than derived: there is no formula behind it, it is a
-/// published table, and a plausible-looking curve fitted to it would be wrong
-/// in the corners.
-#[rustfmt::skip]
-const BV_MULTIPLIERS: [[f64; 9]; 9] = [
-    [2.42, 2.31, 2.21, 2.10, 1.93, 1.75, 1.68, 1.59, 1.50],
-    [2.21, 2.11, 2.02, 1.92, 1.76, 1.60, 1.54, 1.46, 1.38],
-    [1.93, 1.85, 1.76, 1.68, 1.54, 1.40, 1.35, 1.28, 1.21],
-    [1.66, 1.58, 1.51, 1.44, 1.32, 1.20, 1.16, 1.10, 1.04],
-    [1.38, 1.32, 1.26, 1.20, 1.10, 1.00, 0.95, 0.90, 0.85],
-    [1.31, 1.19, 1.13, 1.08, 0.99, 0.90, 0.86, 0.81, 0.77],
-    [1.24, 1.12, 1.07, 1.02, 0.94, 0.85, 0.81, 0.77, 0.72],
-    [1.17, 1.06, 1.01, 0.96, 0.88, 0.80, 0.76, 0.72, 0.68],
-    [1.10, 0.99, 0.95, 0.90, 0.83, 0.75, 0.71, 0.68, 0.64],
-];
-
 /// The battle value multiplier for a crew, clamped like MegaMek's.
+///
+/// The table itself is `helm_core`'s, because battle value needs it too: an
+/// infantry platoon's own figure depends on a skill the design fixes.
 pub fn bv_skill_multiplier(gunnery: u8, piloting: u8) -> f64 {
-    let g = (gunnery as usize).min(8);
-    let p = (piloting as usize).min(8);
-    BV_MULTIPLIERS[g][p]
+    helm_core::bv_skill_multiplier(gunnery, piloting)
 }
 
 /// A design's battle value as flown by this crew.