Would money still be a "necessary evil" if a revolution does happen?

I still firmly believe that there would be significantly less usage of money in an anarcho-communist society, but I don't think it would be entirely abolished. My reason being is that when an organization is fighting, it needs resources, that being food, fuel, guns, ammo, vehicles, wheels, and whatever, and since everyone else in the world is using money, the revolutionaries would still need to use money to buy food, clothes, and medicine from other organizations, and weapons and armor in the black market. Until the whole world agrees that a moneyless society is good, I think money still plays a necessary role in an ancom revolution.