 Avoid any elements that would deviate from the Warhammer 40,000 universe's established lore and aesthetic. Please refrain from introducing anachronistic or modern details. Exclude any features that don't align with the grim and dystopian atmosphere of the Warhammer 40,000 setting. Ensure that the scenes remain faithful to the universe's lore and maintain the balance between the space marines and the alien threat without incorporating any elements that could disrupt the intended portrayal or misrepresent the source material.