>>10286111In this wider shot from the capture you can see remnants of the camouflage along the hull near the waterline, but the hull itself is not badly deteriorated. Most of the discolouration appears to be from repainting patches. U-505 being unusually long-lived having survived three years of war. Anyway, it's your boat so weather it to taste. If you want it relatively fresh, you can justify it. If you want it a bit more beat-up, you could probably justify that too. Go easy, and build up slow until it looks right.