Cup game I'll go with 4132 instead of 4312. You can win the midfield battle with a dmc to clean up anything that gets through whilst he doesn't have a dmc for that safety. If you have an amc, it will just be nullified by his mid dc. When he plays with such a defensive formation, take advantage of his lack of numbers upfront rather than put more attackers to contest with his defenders.

CL game. Yeah, mirror him if you can and have a higher Q.