For this Scene I took a day and a half to put together assets I've already made in the past and then used 2 assets I grabbed from the unreal marketplace: the military vehicle and the megascans rubble. I used Unreal's landscape sculpt tool to quickly layout my foundation to set up my composition. I also Set up a complex vertex painting shader material that I used to get majority of rubble textures and dirt painted on the ground. I also used Speed tree to quickly create and export out a bare tree that I would need to complete the mood for this scene. Then I set-dressed the scene with the focal assets and worked big to small with buildings then rubble to define my block-out. Then I finished off with lighting, exponential fog, FX and post processing settings. Set up a camera and then rendered everything inside the engine.