I have a few ideas but my main 3 are as followed

Smoke grenades.
I feel like smokes would make attacking a lot safer on some maps, included for the support role specifically.

A kill feed.
Not entirely necessary but a nice addition I would personally like

Wall bang, collats and penetrating kills
There’s been a few times I feel like I should of been able to get multiple kills in one shot or wall bang a camping target with a sniper, I think it would be a good qol update