diff --git a/src/app/tools/compare/page.tsx b/src/app/tools/compare/page.tsx
index 3d678e999..a5b1f8e4e 100644
--- a/src/app/tools/compare/page.tsx
+++ b/src/app/tools/compare/page.tsx
@@ -5,11 +5,13 @@ import {
   CaretRightIcon,
   CaretSortIcon,
   ComponentPlaceholderIcon,
+  InfoCircledIcon,
   PlusIcon,
   TrashIcon,
 } from '@radix-ui/react-icons';
 import {
   Button,
+  Callout,
   Dialog,
   Flex,
   Heading,
@@ -76,6 +78,15 @@ export default function Page() {
   const awaitedProvisionDefinitions = use(provisionDefinitions);
   const deltaMode = useComparePersistent((state) => state.deltaMode);
   const crewSkills = useCompareTemporary((state) => state.crewSkills);
+  const haveReactive = members.some((member) =>
+    member.consumables.includes(33),
+  );
+  const haveDynamicArmor = members.some((member) =>
+    member.consumables.includes(73),
+  );
+  const haveSpallLiner = members.some((member) =>
+    member.provisions.includes(101),
+  );
   const stats = useMemo(
     () =>
       members.map((thisMember) =>
@@ -97,6 +108,11 @@ export default function Page() {
                 member.key !== thisMember.key &&
                 member.consumables.includes(73),
             ),
+            applySpallLiner: members.some(
+              (member) =>
+                member.key !== thisMember.key &&
+                member.provisions.includes(101),
+            ),
           },
           {
             equipmentDefinitions: awaitedEquipmentDefinitions,
@@ -514,6 +530,18 @@ export default function Page() {
   return (
     <PageWrapper color="crimson" size="100%">
       <Flex justify="center" gap="2" align="center" mt="4" direction="column">
+        {(haveReactive || haveDynamicArmor || haveSpallLiner) && (
+          <Callout.Root mb="4">
+            <Callout.Icon>
+              <InfoCircledIcon />
+            </Callout.Icon>
+            <Callout.Text>
+              Consumables like Reactive Armor and Dynamic Armor System and
+              provisions like Spall Liner may reduce other tanks' damage.
+            </Callout.Text>
+          </Callout.Root>
+        )}
+
         <Flex gap="2">
           <Dialog.Root
             open={addTankDialogOpen}
diff --git a/src/app/tools/tankopedia/[id]/components/Characteristics/index.tsx b/src/app/tools/tankopedia/[id]/components/Characteristics/index.tsx
index 12991552d..e77c3e782 100644
--- a/src/app/tools/tankopedia/[id]/components/Characteristics/index.tsx
+++ b/src/app/tools/tankopedia/[id]/components/Characteristics/index.tsx
@@ -88,6 +88,7 @@ export function Characteristics() {
       stockTurret,
       applyReactive: false,
       applyDynamicArmor: false,
+      applySpallLiner: false,
     },
     {
       equipmentDefinitions: awaitedEquipmentDefinitions,
diff --git a/src/core/blitzkrieg/provisionDefinitions.ts b/src/core/blitzkrieg/provisionDefinitions.ts
index 9f70f90af..46393d483 100644
--- a/src/core/blitzkrieg/provisionDefinitions.ts
+++ b/src/core/blitzkrieg/provisionDefinitions.ts
@@ -17,3 +17,5 @@ export interface ProvisionDefinitions {
 export const provisionDefinitions = fetchCdonLz4<ProvisionDefinitions>(
   asset('definitions/provisions.cdon.lz4'),
 );
+
+provisionDefinitions.then(console.log);
diff --git a/src/core/blitzkrieg/tankCharacteristics.ts b/src/core/blitzkrieg/tankCharacteristics.ts
index e610a2a1b..a925f8aad 100644
--- a/src/core/blitzkrieg/tankCharacteristics.ts
+++ b/src/core/blitzkrieg/tankCharacteristics.ts
@@ -40,6 +40,7 @@ export function tankCharacteristics(
     stockGun,
     applyReactive,
     applyDynamicArmor,
+    applySpallLiner,
   }: {
     tank: TankDefinition;
     turret: TurretDefinition;
@@ -59,6 +60,7 @@ export function tankCharacteristics(
     camouflage: boolean;
     applyReactive: boolean;
     applyDynamicArmor: boolean;
+    applySpallLiner: boolean;
   },
   {
     modelDefinitions,
@@ -138,7 +140,11 @@ export function tankCharacteristics(
   const intraClipCoefficient = coefficient([hasShellReloadBoost, -0.3]);
   const damageCoefficient =
     coefficient([hasTungsten, 0.15]) *
-    coefficient([applyReactive, -0.2], [applyDynamicArmor, -0.1]);
+    coefficient(
+      [applyReactive, -0.2],
+      [applyDynamicArmor, -0.1],
+      [applySpallLiner && shell.type === 'he', -0.2],
+    );
   const reloadCoefficient =
     (coefficient([hasRammer, -0.07]) *
       coefficient([true, degressiveStat(crewMemberMastery)])) /