Yeah it’s pretty confusing and overwhelming at first. Try Plunder rather than Battle Royale, and drop somewhere away from the main named areas, you can get a feel for the movement and looting without 300 snipers on every rooftop around you, and still do well for XP by collecting cash. As for squads you can ping things by pointing at them and pushing up on the d-pad. Or just speak to them but it’s usually best not to!