This is my first ever level, made in Unreal Engine 4. I spent about 3 months making it in its entirety, all modeling, texturing, material creation, and layout designing was done by myself in that time. It was designed to work best for 2-3 players in free for all type death matches.
A modular approach was taken to reduce the amount of time needed to fill out the entire level, as well as instacing of one main material with many parameters.
See more about this project on the Unreal Tournament forums