The absence of cosmetics has made playing with friends a bit cumbersome, in the sense that unless you deliberately step aside to seek them out, you’ll have a great amount of trouble playing along side them. I play with my friends all the time but having everyone blend together means it feels like i really only see them on the kill feed, whenever they run across my crosshair, or the server list.
I’d love to see some subtle thing that actively sets your friends apart from the crowd if you’re on the same team, either an active playertag that doesn’t go away, having them be highlighted in some sort of way, or maybe some small badge for their playermodel that only you can view. Really anything unobtrusive that makes it easier for recognition.

