Large magazine for a railgun or huge reactors, inductors, cooling systems for energy weapons. Hmmmm....
One point. If you want to do a tech manual, or just put in some tech background in the books, you are going to have to drop the cool sounding words.
For instance, I remember you saying the I-lasers weren't lasers but fusion beams. Well 'Fusion Beam' may sound nifty but it means
nothing. Same for 'Null Space' shields. Unless you are actually using a shielding system based on mathematical solutions to matrix problems.
The other problem with the tech manual is you commit yourself and people ask difficult questions, like "Why rail guns can't pierce null space shields, but other things can?"