"A dramatic siege scene in the art style of Beyond All Reason and the Total Annihilation Universe. A heavily fortified CORE outpost, complete with concrete bunkers and defensive turrets, is under attack by Legion. The CORE defences MUST be attacking the nanites, and firing all weapons - ensure splashes and effects of weapon impact, but it seems futile with the scale and volume of the "grey goo" / nanite field swarming and crashing against the defences like a corrosive series of waves - leaving corroded and partially consumed marks on the structures. The focus of the image is a large, shimmering, and growing 'Grey Goo' of a black nanite field that is slowly creeping towards the base, consuming wreckage as it expands - this looks like a non-Newtonian fluid liquid akin to the volume of a small lake. The scene's mood is one of technological horror and strategic confusion, as the Core defenders are being defeated by methods they cannot counter directly. The nanite field has a pulsating, chaotic red lighting throughout and hundreds of tiny "veins" of a circuit pattern that glows with an ominous light. The focus is on the unstoppable, corrupting, and alien nature of the "Grey Goo" as it consumes the remnants of a conventional battle. Sci-fi horror, creeping dread, hyper-detailed. See more