Do not rush the objective when there is a deadzone placed. This means playing passively and prioritising targets on the enemy team while waiting for the deadzone to disappear. Once it's gone, the team can group up and start to slowly cap the point.
Viktor is not CC immune during Barrage! If you so happen to be close to an enemy Viktor using his ultimate, Runic Blast will prevent him from attacking for a few seconds, allowing you and your teammates to save themselves and/or kill the Viktor.
Don't feed a Zhin's counter when he has the counter legendary! Treat it like Androxus' reversal, but one that can be done twice in a row. When you see a Zhin in counter stance go for one of his other teammates instead.