How to Counter a 3-1-3-1-2 Formation

Hello all,

I was wondering if I could get some advice on how I can beat a 3-1-3-1-2 Formation? It's for my Champions League QF 2nd Leg match tomorrow I'm currently down 1-0 to an Away Loss (So I'm kinda at a disadvantage for Away Goals), but my Team has an Overall rating of 45.3 and my opponent is 35.9. I was playing a standard 4-4-2 but that didn't work so now I'm freaking about because I've never been in the Champions League and I shouldn't lose to a team that is about 10 Rating Points below my team. For those that require actual positions, I'll list them below.

GK, DL, DC, DR, DMC, MC, MC, MC, AMC, ST, ST

I don't know how to put them into formation on here, but I'm sure some people will know what it looks like. If anyone can offer me a powerful Counter Formation, I'll be most grateful.

Thank you in advance.