For a second mod these units are very good. There textures fitted well with the game and there was a lot of great anim editing. The spear thrower looked especially nice. The histories were well thought through and a fitting length.
However, there were a number of bugs I found that lower my score. First of all, in the object menu the unit names are invisible (a glitch in the protox) and the unit sounds do not work. Also, all the units use their base unit's icons which looks very unprofessional.
I liked this mod but in my opinion it needs something more to make memorable and so something people will keep installed. Due to the fact that 3/4 of the units used the same base they all looked quite similar, thats something you might want to think about changing.