I liked what SCUM did in their game where they made it blurry if you tried to peak around corners using 3rd person. Maybe force 1st person for all and vehicles that way it forces you to talk with each other and even if people as usual don't talk it allows the team that does have the advantage. I would prefer people being much more cautions even if it means more "camping" vs people playing the I see you before you can see me game.