YOU're MANAGER, YOU MANAGE
Congratulation Arsenal!!
Hope these thread could help you, Formation-Tactic and GUIDE
first i would remove the friend from my list couse i hate nothing more then unfair players (even if it is a friend in real life)
Then i would use the Butterfly if its your strongest formation.
others i would use 4 - 3n - 2W(AMR and AML) - 1 (red arrows on wingers)