On the factions page, it lists the Security faction as having the datacard for the Shield Generator, but not the Shield Projector. To me, this doesn't really make sense, as one is useless without the other. It's all very good and well to provide security by building a Shield Generator, but if you can't build a Shield Projector to go with it, and say someone has hired your security faction, and that client isn't a government, it's a bit of a waste of time and resources.
Is this a mistake, or is it deliberate. And if it's deliberate, can someone explain why?