We seriously need to come up with a system.

I suggest a system. A group of players who seriously want to contribute Jason Bourne style, take turns with the orders, so there isn't any conflict between them and the game runs smoothly. They can also discuss overall plan together.

This also keeps away those annoying clowns, the worrywarts and Mr. "Hi, Police Officer, I just transpass and stole from that house over there when I lost my memory, could you help me?"