diff --git a/Performance-Options.md b/Performance-Options.md
index 94d6d42..3f2a1ab 100644
--- a/Performance-Options.md
+++ b/Performance-Options.md
@@ -10,7 +10,7 @@ Distant unit culling removes all ground units (including buildings) that are bey
 
 * At the front line and its attached airfields, if a front line exists.
 * At the closest two opposing airfields, if no front line exists.
-* At all mission targets.
+* At all non-BARCAP mission targets.
 
 Culling exclusion zones can be displayed on the map using the "Display Culling Zones" display option in the Liberation toolbar. If set too large, culling will have little effect. If set too small, the game experience will suffer as many SAMs will likely be culled.