Sirocco infantry wear the coastline on them. Their silhouettes stay lean because mobility keeps them alive, but every layer knows surf, fog, frozen piers, sleet, and the black water waiting just outside the light. Cloth, seals, filtration, and interconnection matter as much as armor plate.
That produces a force shaped less by brute frontality than by timing, route discipline, and the ability to remain functional where land and water keep arguing over who owns the next step.