How to beat 4-3-3 narrow and 4-3-3 wide

[Accyrover]

4-3-3 is a counter attack side, you played into the trap, which is probably why his defenders dominated your attacks, rethink your orders.

From the old forum:

4-3-3 is an exeptional counter attacking formation. It's based on the Brazilian formation 4-2-4 while giving more defensive solution with the extra midfield player insted of an fourth attacker. Wide strikers force opponents defenders to split, makings line gaps. Wide defenders can also join the attack (like Arsenal and Ajax do), making the opponents midfield to split in two, giving your MCs space to run with ball and shoot or pass the ball behind opponent's defence. A mix passing style and focus passing should work fine.

May not be pretty but! 4-4-2 works well.