Troops, has there been a single model build in any codex since IVth Edition that has been invalidated? Any model that was once legal to field in IVth (or Vth) that would not be legal now? I don't think there is (but I'd willingly admit I was wrong if I'm shown to be). These days GW goes out of the way not to invalidate models. I'm pretty sure I'm right about this... please advise...