So, after much playing around with Mixer, I found out a way to create an entirely procedural, sci-fi looking pattern through the use of the mask stack, there was nothing from Photoshop or any custom brushes this time. While I don't have a huge amount of control over it, it is extremely easy to pull off new pattern variations by just doing a few tweaks here and there. Even though it has some limitations, it's entirely possible to build trim sheets for sci-fi and other stuff within Mixer now.

There are also a few Megascan textures and some details are from different Smart Materials composited together to get a decent result. Created in Mixer with Megascans and rendered in Marmoset.