Help needed against 3-3-3-1

I'm hoping someone can give me some advice for the 2nd leg of my Champions League Quarter final tomorrow. The team I'm playing is my brothers team and the formation is as follows:

ST

AML - AMC - AMR

MC - MC - MC

DC - DC - DC

The first leg finished 0-0, the quality of the first eleven are pretty evenly matched although my side is slightly better in terms of ratings. I currently play 3-4-1-2 which seems to work well for me but I just struggled to get a crucial away goal in the first leg. I'm hoping the home advantage will give me an edge in this game but I need some help if anyone can?