I wouldn't worry too much about where aircraft are based and their squadrons etc. However, for ISTAR (Intelligence Surveillance Target Acquisition and Reconnaissance) I'd recommend where it is based and a basic understanding of what the aircraft involved do. Mention Rivet Joint (we have one already on ops and two more on the way from the USAF).
I'm assuming this is the filter interview?
My best bit of advice would be to have an opinion on your current affairs - if he/she tries to challenge your opinion, don't back down and stick to your opinion
. They want to see that you can stand by what you think.