Here's what I did (because I went for Frozen Tundra as well):
I took the current Green Bay roster update, and went to the Depth Chart, and put in every single back up for the Packers (They are pretty bad players). I also put in the best players for Arizona at every position. When you start the game in Play Now, make sure Green Bay is home, and you choose to put the game at the Packers Stadium (how it's listed) with the weather as Heavy Snow.
Anyway, once in the game, when picking passes, always make the hot routes for Larry Fitz either a curl or streak. Make sure you lob them, not rifle them. He will catch them every time. Also, I had 11 catches and 1 drop, and still got the achievement. I'm thinking you need to get 10 catches before you drop one. Make sure you get your first 10 without a drop, then it's smooth sailing.