The Landing Craft Support (Large) (Mark 3) (or "LCS(L)(3)" for short) is a class of 130 amphibious warfare vessels built for the US Navy in 1944. Based on a hull from the Landing Craft Infantry (LCI) ships, the LCS(L)(3) was designed to quickly fill the gap of a fire support vessel to cover various landing operations across the Pacific theatre; each ship could be built from the ground up in as little as 10 days. The LCS(L)(3) were deployed in various island-hopping campaigns during the closing stages of the Pacific War, and would later be transferred to various allies of the United States after the war, such as Italy and Japan.

Introduced in Update 1.79 "Project X" as part of the fleet closed beta test, the LCS(L)(3) is a rather polarising coastal vessel. Compared to other coastal vessels with "simple" damage models, the LCS is quite a tough nut to crack, especially if the enemy does not have any autocannons at their disposal. However, the LCS's survivability is a far cry from any vessel with "detailed" damage models, such as its "predecessor", the USS Candid, as it is incapable of taking hits from any autocannons, let alone destroyer-calibre guns. The craft's large size and slow speed also mean that it is nearly impossible to avoid incoming fire. However, given the right time and circumstance, the LCS can still perform well against lesser coastal vessels, with a good assortment of Bofors and Oerlikon autocannons to deal with various torpedo boats.