F*** this achievement. I've tried 3 times now and I always get to around 48 opponents beat. It's so much worse because you get so close and it takes about an hour to do it. I'm done with this mode. I've just got to accept that there's one achievement in WWE 2K14 I'll never get.
And yes, I tried with yospacely
's strategy and I got the exact same results as the first time I tried the day I got the game.