Wow! Very ambitious. We also made our game in Unreal, so I have some advice. You seemed to have packaged the game in the development configuration, which is why I can see some debug lines, able to enter console commands, and the size of the zip file is quite large; use the shipping config unless you had some issues with that build. I was also able to fall through the map at several points which was a little frustrating. Making a full 3D game with unreal for a game jam is really difficult, so I applaud the effort; however, I think that means you should limit your scope. Unreal is hard, and you tried to do a lot! Good job on the progress you did make!