The code of conduct is quite simple: participants must be Orthodox Christians, in good standing with the Church, and typify Christian behaviour.
That doesn’t mean that there will never be slip-ups, sometime tempers will flair, there may be disagreements, suboptimal behaviour may come out. But participating is a privilege, not a right, and anyone who is endangering the health of the body may be asked to refrain from participating at the sole discretion of the unit leader, after every attempt is made to rectify the situation first.