diff --git a/src/services/worldStateService.ts b/src/services/worldStateService.ts
index d8cd0c3c..2ca13620 100644
--- a/src/services/worldStateService.ts
+++ b/src/services/worldStateService.ts
@@ -232,6 +232,7 @@ const pushSortieIfRelevant = (out: ISortie[], day: number): void => {
             value.missionIndex != 0 && // Exclude MT_ASSASSINATION
             value.missionIndex != 5 && // Exclude MT_CAPTURE
             value.missionIndex != 21 && // Exclude MT_PURIFY
+            value.missionIndex != 22 && // Exclude MT_ARENA
             value.missionIndex != 23 && // Exclude MT_JUNCTION
             value.missionIndex <= 28
         ) {