nvm i found out what to do

I have a problem when me and my friend play each others my controller only allows me to be one person on the team while the rest are computers. But for my friend he can switch between any players, is there a way I can fix this. I would really appreciate it if yall can help me instead of just reading this lol. PS: its on the ps4

Hey I wanted to know if me and my friend can play online together vs other people. I mean on the same console we both share screen? I also wanted to know why it is slow playing online it messes my shots up