diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index 6f00631016..b7eb2eea83 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -720,6 +720,7 @@ sector.onset.name = The Onset
 sector.onset.description = The tutorial sector. This objective has not been created yet. Await further information.
 sector.two.description = The enemy is protected by shields. An experimental shield breaker module has been detected in this sector.\nLocate this structure. Supply it with tungsten ammunition and destroy the enemy base.
 sector.lake.description = This sector's slag lake greatly limits viable units. A hover unit is the only option.\nResearch the [accent]ship fabricator[] and produce an [accent]elude[] unit as soon as possible.
+sector.three.description = Scans suggest that this sector will be attacked from multiple sides soon after landing.\nSet up defenses quickly and expand as soon as possible.\n[accent]Mech[] units will be required for the area's rough terrain.
 
 status.burning.name = Burning
 status.freezing.name = Freezing