What strikes me as odd: One piece of equipment (the parabolic microphone) is nearly always omitted from modern RPG equipment lists - be that d20 or Gurps, even in d20 Modern. It was the first thing - well, one of the first - that my players wanted and used extensively, proclaiming vehemently that such a device can listen even through several massive brick walls. It would be nice if designers thought of that and helped the GM with some valid hints; Spycraft is the only game with something remotely similar to a description of parabolic micros, but it's not very enlightening either.