Merge pull request #1827 from exp111/20200820-min-traitor-exception

Fixed Exception when ReadyPlayers < MinTraitors

Content.Server/GameTicking/GamePresets/PresetSuspicion.cs

@@ -91,6 +91,11 @@ namespace Content.Server.GameTicking.GamePresets
                 IPlayerSession traitor;
                 if(prefList.Count == 0)
                 {
+                    if (list.Count == 0)
+                    {
+                        Logger.InfoS("preset", "Insufficient ready players to fill up with traitors, stopping the selection.");
+                        break;
+                    }
                     traitor = _random.PickAndTake(list);
                     Logger.InfoS("preset", "Insufficient preferred traitors, picking at random.");
                 }