Lower shuttle time + recall turning point (#9328)

Content.Shared/CCVar/CCVars.cs

@@ -941,6 +941,13 @@ namespace Content.Shared.CCVar
         public static readonly CVarDef<bool> EmergencyShuttleEnabled =
             CVarDef.Create("shuttle.emergency_enabled", true, CVar.SERVERONLY);
 
+        /// <summary>
+        ///     The percentage of time passed from the initial call to when the shuttle can no longer be recalled.
+        ///     ex. a call time of 10min and turning point of 0.5 means the shuttle cannot be recalled after 5 minutes.
+        /// </summary>
+        public static readonly CVarDef<float> EmergencyRecallTurningPoint =
+            CVarDef.Create("shuttle.recall_turning_point", 0.5f, CVar.SERVERONLY);
+
         /// <summary>
         /// The map to load for centcomm for the emergency shuttle to dock to.
         /// </summary>