Do you need to fill a prymid to get the buddy, or is it just if you hit the rank youll get the buddy

Ive got mates who havent played valo in like 6+ months playing the game again and having fun. Ive been able to merge to friend groups together to form the seven people to make the team. Maybe its because we are 2 - 0 but im having a blast...

Basically the title, most games Im either 1/2/3 in the game/team, but lately Ill go 19/12/x ish in one, and then next ill go 10/18/x or less. Im a Killjoy main, who plays Sage or any other character that the team needs (mostly alt agents...