They need to slow the rate hunger accumulates. You die of thirst IRL far before hunger would kill you.
In MG:S they drain at the same rate I believe, and since water is MUCH easier to get ahold of than food, it means you're constantly eating or hunting. Maybe half it or tie it in with what you're doing? It seems hunger and thirst tick down at the same rate regardless if you're lying prone or sprinting. (Current rate should be when sprinting IMHO.)
Also, a way to mute the constant dialogue reminders to eat, drink, and refill your air tank. I know MGSV had alot of tutorial prompts in early chapters like how to mark enemies, how supplies work, etc. but watching a stream, it feels like the various dialogues never stop playing once you get far enough, and just like MGSV if you're listening to a cassette tape (And they removed the rewind/fast foward I think) the dialogue will "take priority" over the tape, both in audio and subtitles.
Add a function to mute them in the sound options. I was watching a stream and I was getting annoyed.
"You're gonna extract HIM?" "BOSS GET DOWN! THE ENEMY SNIPER!" only played infrequently, and the dialogue was maybe a few seconds long, but "Captain, you are running low on air, you need air to breathe, you can refill your air-tank through the idroid. Open the idroid and use Kuban Energy to refill your air-tank" is grating.
They should have just had the classic metal gear "bee-deep...bee-deep...bee-deep" low health/health is draining sound play a few times and the stat blink. Or just have them only play at 5%. Currently it seems they begin to play at 50%
