I had work in game play process. Many levels that I made using Blender now dont exists, I split everything in many objects for reuse all of them in the Unity''s Editor.
Objects like walls, spot lights, lamps and other now be models that I put in Unity Editor and create the level design and game play, using prefabs I control the IA to turn on the Path decision to find the objectives (the player or generators for example).
In this video many of basic targets of the game works fine, collectable items, camera effects, particles and the last one: blink the player when he receive a shot giving time to the player kill enemys.
Remember, you can play the first version of the game at: