For 4-5-1 V defensive or hard defensive/down the flanks/own half/long/hard/zonal - force counter/no offsides. Reds on the flanks, blues on the MC's.

If your playing the diamond, attacking, through the middle, whole pitch, hard, short, zonal, no counter, no offsides. Red arrows on DL/DR and all players in the midfield.

For me, I've had tons of success with the 4-5-1 V with this formation, the past few seasons.