diff --git a/scripts/verify-battle-scenario-data.mjs b/scripts/verify-battle-scenario-data.mjs
index 8368643..79bcb44 100644
--- a/scripts/verify-battle-scenario-data.mjs
+++ b/scripts/verify-battle-scenario-data.mjs
@@ -38,7 +38,7 @@ try {
     validateMap(errors, scenario, terrainKeys, context);
     validateUnits(errors, scenario, classKeys, itemKeys, equipmentSlots, context);
     validateObjectives(errors, scenario, context);
-    validateSortie(errors, scenario, classKeys, formationRoles, context);
+    validateSortie(errors, scenario, classKeys, formationRoles, terrainRules, context);
     validateRewards(errors, scenario, scenarioIds, itemNames, knownRewardUnitIds, context);
   });
 
@@ -192,13 +192,15 @@ function validateObjectives(errors, scenario, context) {
   });
 }
 
-function validateSortie(errors, scenario, classKeys, formationRoles, context) {
+function validateSortie(errors, scenario, classKeys, formationRoles, terrainRules, context) {
   const sortie = scenario.sortie;
   if (!sortie) {
     return;
   }
 
   const unitIds = new Set(scenario.units.map((unit) => unit.id));
+  const allyUnitIds = new Set(scenario.units.filter((unit) => unit.faction === 'ally').map((unit) => unit.id));
+  const enemyTiles = new Set(scenario.units.filter((unit) => unit.faction === 'enemy').map((unit) => `${unit.x},${unit.y}`));
   if (!Number.isInteger(sortie.sortieLimit) || sortie.sortieLimit < 1) {
     errors.push(`${context}: invalid sortie limit ${sortie.sortieLimit}`);
   }
@@ -230,6 +232,8 @@ function validateSortie(errors, scenario, classKeys, formationRoles, context) {
   [...requiredUnits, ...excludedUnits].forEach((unitId) => {
     if (!unitIds.has(unitId)) {
       errors.push(`${context}: sortie references missing unit "${unitId}"`);
+    } else if (!allyUnitIds.has(unitId)) {
+      errors.push(`${context}: sortie references non-allied unit "${unitId}"`);
     }
   });
   const recommendedUnitIds = new Set();
@@ -240,6 +244,8 @@ function validateSortie(errors, scenario, classKeys, formationRoles, context) {
     recommendedUnitIds.add(recommendation.unitId);
     if (!unitIds.has(recommendation.unitId)) {
       errors.push(`${context}: recommended unit "${recommendation.unitId}" is missing from units`);
+    } else if (!allyUnitIds.has(recommendation.unitId)) {
+      errors.push(`${context}: recommended unit "${recommendation.unitId}" is not allied`);
     }
     if (excludedUnitIds.has(recommendation.unitId)) {
       errors.push(`${context}: excluded unit "${recommendation.unitId}" cannot also be recommended`);
@@ -276,12 +282,24 @@ function validateSortie(errors, scenario, classKeys, formationRoles, context) {
       errors.push(`${context}: deployment slot ${slot.x},${slot.y} has invalid role "${slot.role}"`);
     }
     const tileKey = `${slot.x},${slot.y}`;
+    const terrain = scenario.map.terrain[slot.y][slot.x];
+    if (terrainRules[terrain]?.passable === false) {
+      errors.push(`${context}: deployment slot ${tileKey} is on impassable terrain "${terrain}"`);
+    }
+    if (enemyTiles.has(tileKey)) {
+      errors.push(`${context}: deployment slot ${tileKey} overlaps an enemy unit`);
+    }
     if (deploymentTiles.has(tileKey)) {
       errors.push(`${context}: duplicate deployment slot ${tileKey}`);
     }
     deploymentTiles.add(tileKey);
     if (slot.unitId && !unitIds.has(slot.unitId)) {
       errors.push(`${context}: deployment slot references missing unit "${slot.unitId}"`);
+    } else if (slot.unitId && !allyUnitIds.has(slot.unitId)) {
+      errors.push(`${context}: deployment slot references non-allied unit "${slot.unitId}"`);
+    }
+    if (slot.unitId && excludedUnitIds.has(slot.unitId)) {
+      errors.push(`${context}: excluded unit "${slot.unitId}" cannot have a deployment slot`);
     }
     if (slot.unitId) {
       if (deploymentUnitIds.has(slot.unitId)) {
@@ -290,6 +308,11 @@ function validateSortie(errors, scenario, classKeys, formationRoles, context) {
       deploymentUnitIds.add(slot.unitId);
     }
   });
+  requiredUnits.forEach((unitId) => {
+    if (!deploymentUnitIds.has(unitId)) {
+      errors.push(`${context}: required unit "${unitId}" must have an explicit deployment slot`);
+    }
+  });
 }
 
 function validateRewards(errors, scenario, scenarioIds, itemNames, knownRewardUnitIds, context) {
diff --git a/src/game/data/battles.ts b/src/game/data/battles.ts
index f3edb75..8d3d9d5 100644
--- a/src/game/data/battles.ts
+++ b/src/game/data/battles.ts
@@ -5841,7 +5841,7 @@ export const fortiethBattleScenario: BattleScenarioDefinition = {
       { x: 13, y: 56, role: 'support', unitId: 'ma-liang', label: '제방 민심' },
       { x: 21, y: 57, role: 'support', unitId: 'huang-quan', label: '퇴로 판정' },
       { x: 14, y: 54, role: 'flank', unitId: 'zhao-yun', label: '나루 보강' },
-      { x: 22, y: 51, role: 'flank', unitId: 'ma-chao', label: '기병 봉쇄' }
+      { x: 22, y: 52, role: 'flank', unitId: 'ma-chao', label: '기병 봉쇄' }
     ],
     note:
       '한수 수공은 둑길과 수문을 잡아 우금 본대를 강과 진흙 사이에 묶는 전투입니다. 법정·마량·황권으로 물길을 읽고, 조운·마초로 방덕 기병의 돌파를 막으며 관우의 전열을 유지하십시오.'
@@ -5979,7 +5979,7 @@ export const fortyFirstBattleScenario: BattleScenarioDefinition = {
     deploymentSlots: [
       { x: 5, y: 58, role: 'reserve', unitId: 'liu-bei', label: '포위 명분' },
       { x: 12, y: 53, role: 'front', unitId: 'guan-yu', label: '성문 압박' },
-      { x: 18, y: 54, role: 'support', unitId: 'huang-zhong', label: '성벽 견제' },
+      { x: 17, y: 54, role: 'support', unitId: 'huang-zhong', label: '성벽 견제' },
       { x: 14, y: 58, role: 'support', unitId: 'ma-liang', label: '형주 후방' },
       { x: 19, y: 58, role: 'support', unitId: 'fa-zheng', label: '수성전 판단' },
       { x: 15, y: 56, role: 'flank', unitId: 'zhao-yun', label: '나루 보강' },
@@ -6123,7 +6123,7 @@ export const fortySecondBattleScenario: BattleScenarioDefinition = {
       { x: 13, y: 54, role: 'front', unitId: 'guan-yu', label: '나루 전열' },
       { x: 15, y: 59, role: 'support', unitId: 'ma-liang', label: '민심 판정' },
       { x: 9, y: 60, role: 'support', unitId: 'mi-zhu', label: '창고 장부' },
-      { x: 16, y: 57, role: 'flank', unitId: 'zhao-yun', label: '나루 보강' },
+      { x: 16, y: 58, role: 'flank', unitId: 'zhao-yun', label: '나루 보강' },
       { x: 23, y: 60, role: 'support', unitId: 'huang-quan', label: '장부 판정' },
       { x: 23, y: 52, role: 'flank', unitId: 'wang-ping', label: '숲길 경계' }
     ],
@@ -6262,12 +6262,12 @@ export const fortyThirdBattleScenario: BattleScenarioDefinition = {
     ],
     deploymentSlots: [
       { x: 8, y: 61, role: 'reserve', unitId: 'liu-bei', label: '형주 명분' },
-      { x: 15, y: 56, role: 'front', unitId: 'guan-yu', label: '성문 전열' },
+      { x: 14, y: 56, role: 'front', unitId: 'guan-yu', label: '성문 전열' },
       { x: 17, y: 61, role: 'support', unitId: 'ma-liang', label: '민심 판정' },
       { x: 11, y: 61, role: 'support', unitId: 'mi-zhu', label: '창고 장부' },
       { x: 26, y: 62, role: 'support', unitId: 'huang-quan', label: '군령 판정' },
       { x: 25, y: 52, role: 'flank', unitId: 'wang-ping', label: '숲길 경계' },
-      { x: 18, y: 58, role: 'flank', unitId: 'zhao-yun', label: '나루 차단' }
+      { x: 18, y: 60, role: 'flank', unitId: 'zhao-yun', label: '나루 차단' }
     ],
     note:
       '공안 성문 변고는 여몽 본대를 막는 동시에 성문과 장부를 다시 붙드는 전투입니다. 마량·황권으로 군령의 진위를 읽고, 미축으로 창고 기록을 확인하며, 조운·왕평으로 강변 복병을 끊으십시오.'
@@ -9062,7 +9062,7 @@ export const sixtyFirstBattleScenario: BattleScenarioDefinition = {
       { x: 34, y: 85, role: 'front', unitId: 'jiang-wei', label: '빗길 길눈' },
       { x: 45, y: 90, role: 'front', unitId: 'wei-yan', label: '반격 선봉' },
       { x: 31, y: 88, role: 'support', unitId: 'li-yan', label: '수레 장부' },
-      { x: 12, y: 87, role: 'support', unitId: 'huang-quan', label: '군량 장부' },
+      { x: 13, y: 87, role: 'support', unitId: 'huang-quan', label: '군량 장부' },
       { x: 42, y: 86, role: 'front', unitId: 'wang-ping', label: '산길 표식' },
       { x: 30, y: 92, role: 'front', unitId: 'zhao-yun', label: '기동 예비' },
       { x: 24, y: 85, role: 'support', unitId: 'ma-liang', label: '마을 안심' }
@@ -9236,7 +9236,7 @@ export const sixtySecondBattleScenario: BattleScenarioDefinition = {
       { x: 45, y: 91, role: 'front', unitId: 'wei-yan', label: '돌파 선봉' },
       { x: 30, y: 93, role: 'front', unitId: 'zhao-yun', label: '회수선' },
       { x: 42, y: 86, role: 'front', unitId: 'wang-ping', label: '산길 표식' },
-      { x: 12, y: 88, role: 'support', unitId: 'huang-quan', label: '보급 장부' },
+      { x: 13, y: 88, role: 'support', unitId: 'huang-quan', label: '보급 장부' },
       { x: 24, y: 86, role: 'support', unitId: 'ma-liang', label: '마을 안심' },
       { x: 59, y: 95, role: 'flank', unitId: 'ma-dai', label: '측면 견제' }
     ],
@@ -9393,7 +9393,7 @@ export const sixtyThirdBattleScenario: BattleScenarioDefinition = {
       { x: 45, y: 93, role: 'front', unitId: 'wei-yan', label: '추격 선봉' },
       { x: 31, y: 94, role: 'front', unitId: 'zhao-yun', label: '회수 예비' },
       { x: 42, y: 88, role: 'front', unitId: 'wang-ping', label: '표식 유지' },
-      { x: 12, y: 90, role: 'support', unitId: 'huang-quan', label: '수레 장부' },
+      { x: 14, y: 90, role: 'support', unitId: 'huang-quan', label: '수레 장부' },
       { x: 25, y: 88, role: 'support', unitId: 'ma-liang', label: '마을 고시' },
       { x: 60, y: 97, role: 'flank', unitId: 'ma-dai', label: '봉화 차단' }
     ],