Joe,
First of all, I know you're new here, but forum necromancy (the resurrecting of ancient threads) is generally frowned upon. The only exception is if you've found some problems with the unit, or have something major (say an altered version of the unit) to add.
Secondly, to answer your question: It's entirely up to you what you use these (or Firaxis' original units) for. I'm personaly thinking of using this guy as a "knight" in my Final Fantasy mod. I'm already using UJ7's Euro Spearman as a "warrior" in the same mod.