Normally 4-4-2 is a hard formation to counter that's why I use it so much), but he has made it easier for you by only having 1 flank player on either side. 4-5-1 V is a good option to attack down the flanks. There are other options, but out of the available ones I have only really tested 4-5-1 V and 3-5-2 V - I'd suggest 4-5-1 V is better because he is using 2 strikers, so having 4 defenders is useful.