A submod for Westeros: Total War designed to bring the look, the feel and the sounds of HBO's Game of Thrones to the world of Westeros. (Alas I have no affiliation with HBO) This submod is currently for version 0.53 of Westeros: Total War which is currently in Alpha stages but with a devoted mod team working hard to bring it to a full release. The submod is compatible with both the Standard (Vanilla) version of Westeros 0.53 and also the Enhanced version. It is highly recommended that you visit the official mod page at TWCenter.net to get precise details and installation help.
So the Lannister Swordsmen Upg 1 and the Lannister Sergeants Upg 1 do have capes now - all thanks to Firestorms editing. In order to get the heavy troops during the campaign you may need to build a blacksmith or armory.
They are using a different model if they aren't armor upgraded to armor upgrade 1.