I've only done around 8 scav cases so far since unlocking it (mostly intel), and have received:
– 5 High Value Task Keys (San Tape Key, Operating Room Key, Iron Gate, San 216, and Tarcone Director's) – alongside some cheap keys as well
– 1 Tank Battery
– RSASS
– Several F.I.R. "Collector" Items
Unlike the last few, I seem to be getting far more than 1:1 value out of the box, which actually incentivizes me to use it more.
My scav karma is currently only 2.33 because I killed Santa day 2 of the wipe while he was standing on White Pawn roof in Reserve spraying at another PMC… but I saw from a video this morning that the box continually decreases in time the higher your scav karma gets. At 12 scav karma, the box was only taking ~2 hours, so unlike the 6 fence rep cap for scav timer, the box seems to currently have no lvl cap.
Source: https://www.reddit.com/r/EscapefromTarkov/comments/10h8xpc/scav_case_this_wipe/