A suggestion to the perk Treasure hunter : if you have it no changes in tresure loot but when you spot a encounter in wm (outdoor) you get in the message if there is a locker or not, a valuable info that may change your decision (go in or skip ?)
Another suggestion for lockers hunters: a craftable item (hq alloy, uranium, maybe it use small energy cells ), head slot, X ray glasses! Yes you can see what a locker contain! (so if your first attempt fail you dont wait to open a stupid locker containg 4 junk and 15 caps)