Add Qishan renewed offensive chapter

src/game/scenes/BattleScene.ts

@@ -6458,6 +6458,26 @@ export class BattleScene extends Phaser.Scene {
   }
 
   private enemyBehavior(enemy: UnitData): EnemyAiBehavior {
+    const lateNorthernPrefixes = [
+      'northern-fourth',
+      'northern-fifth',
+      'northern-sixth',
+      'northern-seventh',
+      'northern-eighth'
+    ];
+    if (lateNorthernPrefixes.some((prefix) => enemy.id.startsWith(prefix))) {
+      if (
+        enemy.id.includes('-scout') ||
+        enemy.id.includes('-cavalry') ||
+        enemy.id === 'northern-eighth-officer-zhang-he'
+      ) {
+        return 'aggressive';
+      }
+      if (enemy.id.includes('-archer') || enemy.id.includes('-strategist') || enemy.id.includes('-leader-')) {
+        return 'hold';
+      }
+      return 'guard';
+    }
     if (
       enemy.id.startsWith('northern-first-scout') ||
       enemy.id.startsWith('northern-second-scout') ||