The AAC is proof that if it can be made to fly, the alliance will fly it. A refitted clone wars era LAAT gunship was upgraded with advanced engines and multiple cannon hard points in place of the standard bubbled lasers on the base ship.
Alliance Assault Craft LAAT refit.
Scale relative to other ships.
Updated card with dial better tuned to represent the bulk of the ship and one extra hull point so it's one point more than a B-wing.
It'd still be called a LAAT/i.
It'd still be called a LAAT/i.
http://starwars.wikia.com/wiki/Low_Altitude_Assault_Transport/infantry/Legends
Check out the section under Galactic Civil war. 