My suggestion : dont use 4-5-1 V style formation.It will not work against 4-3N-1-2.Try butterfly - 3-2-2-2-1
My experience shows everytime I use 4-5-1 against this formation,I loose against weaker opponents.
Are you kidding me? butterfly is so weak on the middle. and 4-3N-1-2 is attack from the middle. It's not make sense mate
YOU're MANAGER, YOU MANAGE
Congratulation Arsenal!!
Hope these thread could help you, Formation-Tactic and GUIDE