Steam Br 145 Enabling And Disabling Safety Systems

Hi i found an issue with this tutorial, (I tried several times) but the only objective in this tutorial that gives you points is at the beginning and gives you 250, the other objectives do not give points by completing them, this means that once the tutorial is finished you only have 250 points, but for the platinum medal you need 350 points, am I doing something wrong? I already got the platinum medals on all the scenarios in this dlc, all I'm missing is this tutorial.