I think John and I are both around the same location: Rify.
It's a wrecked freighter on the east coast near Khelm.
I did loot an assault rifle from above the wheel house of the freighter, so it looks to drop military gear. However, I haven't seen a magazine or ammo yet.
Khelm is about a 5 minute jog away and has a well and several residental buildings for water and food loots. A bit south is Berizino, which I seem to recall had a hospital in the Mod. I haven't confirmed if it's still there in SA.
Good log in, log out spot, I believe.
-troy