Long breakdown of a Helldivers 2 scene creation : Finding references and assets, modeling elements in Blender, projecting textures like a pro, importing everything, setting up lighting, atmospherics, creating some niagara VFX, animating elements in sequencer and giving life to the scene, then do the final render.
https://dev.epicgames.com/community/learning/tutorials/GYYj/creating-a-helldivers-2-animation-in-unreal-engine-5-in-6-days-full-breakdown