I kept having problems getting 13.2 through the Desura client, so I got the DDL off http://www.desura.com/games/xenonauts/download.
However, assets\units\alien\sebillian\warrior\weapon.AlienPlasmaPistol\, assets\units\friendlyaitroops\farm\weapon.shotgun\, assets\units\friendlyaitroops\industrial\weapon.laserrifle\, assets\units\friendlyaitroops\industrial\weapon.machinegun\, assets\units\friendlyaitroops\industrial\weapon.rocketlauncher\, assets\units\friendlyaitroops\industrial\weapon.scatterlaser\, assets\units\friendlyaitroops\town\weapon.laserrifle\, assets\units\friendlyaitroops\town\weapon.machinegun\, assets\units\friendlyaitroops\town\weapon.rocketlauncher\, assets\units\friendlyaitroops\town\weapon.scatterlaser\ and assets\units\xenovehicles\ferret\Ferret_scatterlaser\ are empty folders.
Are they supposed to still be?
(EDIT: The post is bizarrely splitting up the directory paths.)