I don't really get the concept here because gaining scav faction is a pain, and you are basically just a loot monkey. Now this is frustrating because I really like that you have no hud or markers for who is friend or foe. However, as a scav I have to check my fire first which 99% of the time results in my death. There is zero way to tell if it's a player, scav, OR raider and 2 of them are going to insta-kill you if you encounter them.
So I don't think changing the hud, clothes, or anything physical is the option. I don't think players should be able to blatantly kill the AI scavs either, but losing rep because I thought it was a player sucks, and getting my head blown off because it's a raider is lame too.
Maybe there could be negative rep if you kill too many ai scavs every x raids, and building rep requires some lengthy missions. I'm not sure of a solution, just frustrated after 5x scavs deaths to other player scavs in a row.
Source: https://www.reddit.com/r/EscapefromTarkov/comments/swmb0j/scav_faction_is_bullcrap/