Game types are not evenly given in Quickplay

Trying to win 3 slayer PVP matches and for the last 2 hours I’ve played nothing but objective games. literally 15 games to 1 slayer match is ridiculous, Either make slayer matches come up more frequently or make playlists for Slayer and Objective games separate. The fact that you have no choice in the game type you play, yet they expect you to win a certain amount of a specific game type as a weekly challenge is so stupid.