The left wingback should be instructed to mark the opponents ST (CR), your BPD to mark ST (C), and your left WB to mark ST (CL). Your IWB should be set to mark opponents wingers. These are the most important ones.
Also set your wingbacks to run wide with the ball and sit narrower. The DLP is instructed to stay wider and run wide with the ball (to make space for the IWB). That's about it. Please let me know how the tactic works for you.