A buddy asked me this question and we were both scratching our heads a bit. If you are being vectored for an ILS and you go lost comms what would you do? If you are on the downwind, it makes sense to climb to the IAF altitude and fly the full procedure or if you are on the dog leg, you should just join the localizer and fly the approach. But what if you are on a base vector? My first instinct is to do the same as a downwind, but I feel like there is an argument to be made for just joining the localizer, especially if you have something like glass for added SA. Just curious to hear everyone's thoughts.