1. This does not touch the models or textures of any preexisting unit (though you can add the aquilifer which, of course, requires the adding new models and textures to your game). The "phalanx" changes are purely statistical and modify only the EDU file.

2. 1.1 does not include any of the features/changes of this mod. This mod is compatible only with 1.1. Installation is simple: extract to whatever folder you have installed EB in (probably called Rome: Total War unless you have changed it).