At certain hours of the day the BETA player base is pretty small, so there maybe only a single Veteran Game going or just 1-2 Recruit game. I usually check in to the Discord channel and see what people are playing. Weekends usually have lots of games going.
Last night was kind of sucky, I think half the people were queued for Veteran and half for Recruit, and for quite a while neither got enough people to start a game.
Remember if you are the 17th person queued and there is only enough for 1 game, you may have to wait like 10+ minutes to get into the next game.