Our protocol at NUW is if a crewmember experiences any physiological event, they are evaluated upon landing, then if DCS is suspected, station SAR helo transports them immediately to a chamber.
Rhinos now have that capability with H10. It's in the jets now to play around with, but flight clearance is a few months away. You're 2-3 pushtiles away from direct to capability for world-wide DAFIF (more or less), airfield info (gear availability, RWY length), among other things. It's got a lot of potential.
I can't speak for the E/F folks, but Gs have civilian ILS capability. It goes in the ICLS rack, so you get one or the other. Currently, only the Exped VAQ squadrons have it.