When should I go into the Modeling Weapons course?

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Hey all, nice to be a part of this community

The main reason for me to get into Blender is to model weapons and eventually reloading animations and such, I'm well aware there's a long way to go still, but that's my focus on what I want to learn eventually

I saw this course: https://cgcookie.com/course/modeling-weapons-for-a-first-person-shooter which looks incredible and was a big part of why I bought in CG Cookie. I'm just wondering at what point you guys think it would be appropiate for me to go in

The course itself recommends doing this https://cgcookie.com/course/intro-to-normal-map-modeling-for-games before going into it, which in turn says "an intermediate understanding of how to model in Blender is expected before taking this course."

Now, I just finished the first Learning Flow, "Your first week with Blender and CG Cookie" (the Low Poly Rocket animation is rendering rn), I assume before anything else I should go into the "Tackle the fundamentals to become a skilled Blender artist". After finishing that one, would I be ready to go into the mentioned courses? Do I need something else before it? Maybe the animation module as well? Honestly i have no clue

Regardless of how long it takes I'm super excited to get to that point, hope you guys can lead me into the right direction, and thanks a lot in advance