Though I generally try to avoid shorthand, it's probably lightly peppered throughout. I rewrote the specific instances you mentioned so that the abbreviations are now understandable from context, or with references to LV#, which is more likely to be understood by a typical gamer.

The trouble with explaining every term from the ground up (e.g., what's a limit break?) is that I don't want to bog down myself or readers with rote explanations of basic mechanics. I assume a basic familiarity with game systems. My end goal is to provide top-level strategic insight, and leave the rote explanations to other resources like wikis or the in-game tutorial.