battle scene, Total War: Rome II, Mac computer, Roman soldiers, tactical formation, phalanx, legionnaires, centurions, Gallic tribes, war elephants, siege engines, catapults, ancient city, Colosseum, strategic map, real-time combat, historical strategy game, detailed armor, shields, swords, spears, Mediterranean landscape, dynamic weather, day and night cycle, realistic textures, 3D graphics, isometric view, soft lighting, epic scale, panoramic shot.