If your MMO has attacks like in WoW where you don't aim bullets, but simply select an enemy and then perform an action, positioning isn't that important, since you're not using hitboxes and raycasts. The only instance where it would be relevant is for AoE stuff, but even then you can adjust the mec…

@frob thanks for the actionable tips!

Please excuse in the case of misunderstanding your ask.
I've always liked https://www.rastertek.com/tutdx11win10.html 

I agree that the diagram is hard to read. Make the text bigger, and make the arrows bigger, and label the arrows for what they mean. Ownership? Communication? Reactivity? Dependency? Usage?

But, also, I think your architecture diagram seems to mix a bunch of different layers of abstraction.

How about…

@Jikoob If it works for you then there isn't anything really wrong with it.

Myself I use an asset manager that handles anything that can fit under the category of an asset, images, sound, fonts, models, maps, …

If you make a generic enough manager you can simply add an interface to allow new asset ty…