Easier than is seems. You can get this ach and the "Ahead Of The Pack" ach together. Just change the difficulty settings in the options to Legend. Then go into the Championship Scramble match and pick the 10 minute one. This gives you time to get a decision (pinfall or submission) before another wrestler enters the match. You should pick a wrestler with good stats (John Cena, Randy Orton, Batisita, etc.). Be the #1 entry then pick the other four wrestlers. The #2 entry should be a lower stat wrestler (JTG, Santino, Jesse, etc.). The other 3 doesn't matter who you pick or the order of entry. I still advise to pick weaker opponents. When the match starts beat up the other guy and get a pinfall or submission before the 3rd person enters the match. Then after that it's smooth sailing. Just chill away from everyone and make sure no one else gets a pinfall or submission. You have to be the only one to get a decision to get "Ahead Of The Pack." Once the match is over you should get two achs.