Airway - Change Reverting default obstruction chance (#327)

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- Title

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addons/airway/XEH_preInit.sqf

@@ -44,7 +44,7 @@ In real life, this will happen sometimes, not quiet often.
     "SLIDER",
     [LLSTRING(SETTING_obstruction),LLSTRING(SETTING_obstruction_DESC)],
     [CBA_SETTINGS_CAT, LSTRING(SubCategory_Basic)],
-    [0, 100, 40, 0],
+    [0, 100, 15, 0],
     true
 ] call CBA_Settings_fnc_init;