Scatter Gun Course

Is it possible to get the Gold when you first get the Scatter Gun? I had some time before work and delivered the Eco Ore to Krew, got the Gun, protected Sig as we got Metal Heads, got the new Power Up for Dark Jak with 25 Skull Gems, an did 2 find the precursor challenges and am now getting ready to go to the Sewers.

Before I logged off of my PS5 before going to work I took a chance to get the high scores and only managed to get Bronze at 8000.

Do I need to wait for something or is it possible to get the top score of Gold at this point