So basically in 4-4-1-1 formation u have to mainly try and stop the opposition AMC to have any chance of winning the game.the AMC is his most important player on the pitch stopping him would mean stopping his whole attacking play.he also has a good midfield(4).he does not have a DMC to counter ur AMC.playing a AMC and a DMC in ur formation will be vital to ur success.i would say that u need to either go thru the middle or down the flanks.
Basically I would prefer to play a formation which is solid in the middle and which enables u to attack down the flanks and also thru there middle of the pitch.
I would tell u to use 4-1-3w-1-1.why??
1)good back four to stop opponents wingers and one striker.
2)1 DMC to stop or counter his AMC.
3)solid midfield to maintain possession(5)
4)u will have a AMC who will operate without being challenged by a DMC.
5)the formation also gives u the option to play down the flanks and also thru the middle.ur choice.