1 issue I personally struggled with when I was in mid tier pvp is being stubborn with the team I want to play Vs weekly meta I should be playing. Team building each week is most important. Tweak your team to the weekly meta after u find urself on a losing streak or splitting win/loss. If ur gear is not the issue then ur team must be tweaked. Study the teams u lost to. As a challenger player for past 3 seasons. I often start with a team I like, confidence runs high but then I must be open to change once I don’t see it translating to wins. I sometimes scrapped my entire team after just 2 losses addressed the flaw then went on winning streak. That said it could also be a problem if u have limited line up built aka lacking roster depth, then u may have to skip the week.

2 gear - self explanatory

3 deployment order to counter the opposing player deployment in combination with triggering ur operator skill. Don’t ignore the opposing player deployment just for the sake of activating ur skill. In general you should think about alternate your deployment order between a char to activate ur operator skill and a char countering opposing player.