I think that the average Flt Lt - of any Branch - has a pretty good idea of the other Services' kit - we are a lot more Joint (OK - read 'Army') these days and, again, most Flt Lts will have done a spell in Afghan (as the ill-educated seem to refer to Afghanistan) and will be familiar with a lot of 'Green' terminology and kit.
I laughed at the IR Cylume story!