One of the first core problem was that we didn't have a concept artist, meaning we needed to reiterate easily inside the engine. To resolve this issue I've created a simple testing material with modular colors/metal/roughness that is easy to use

The second core problem was that we had one year of development. Meaning that we needed a quick way to create levels. My solution was creating a modular BP that let the level designer/env artist easily creates levels

The added bonus of this system was that it was pretty lightweight