diff --git a/Custom-Factions.md b/Custom-Factions.md
index 423326f..1af41fe 100644
--- a/Custom-Factions.md
+++ b/Custom-Factions.md
@@ -55,6 +55,8 @@ All parameters have default values, so you do not have to set them all up necess
 
 When changing a livery, if an aircraft is a Core DCS aircraft or module such as the MiG-19P, the livery must be in the Modules Liveries section and not your Saved Games folder.
 
+It is recommended, that your faction has access to all unit types, e.g. at least one tank, one IFV, one APC  and so on in order for the auto purchase option for the player and the ai to work.
+
 # Example file
 
 Below is an example of a factions file :