I have been stacking up wagers since I started this game. I've only attempted 3, and made no progress with any of them. After getting a bit of advice, I have set up a 3.7BR US armor bar with an M24, M15 GMC, M10 GMC, M4, P47D-28, and XP38G. With all of these being BR 3.7 and under, I have some hope of not facing any enemies 5.0 or higher.
Anyone have experience with how to beat wagers successfully? Is there a time when I would have a better or worse chance of finding squadmates to join in and do wagers?