I use to tweak this file,descr_mount files,based in a Darth´s file,to improve the impact of cavalry charge,they penetrate deep in infantry formations and give a more realistic sense of clash.
Just replace ,descr_mount in C:\Program Files\SEGA\Medieval II Total War\mods\Third_Age\data,better back up the old one for the case you don't like .
PS:Try a custom battle with and without my file ,with the some units a to see the difference.
PS:This file is based in a Darth file.
Ok.Ok.After a enormous number of requests (just two but that ok) I decide to make a 1.4 compatible version.
PS:this may not work with some others sub mods,back up first.