A simple clone of Odyssey's gravship hull walls, but with 175% max hitpoints. For balance, the new wall's costs are scaled similar to regular vs. fine stone tiles: 10x work cost, 4x resource cost.
Requires [url=https://steamcommunity.com/sharedfiles/filedetails/?id=3542377046]Angled Hull Expansion[/url] to handle diagonal wall linkage.
