 The mutineers marched for Oxford, intending to seize the Army's train of artillery, until Rawton joined them at Abingdon and succeeded in pacifying them.Now deeply involved in the Army's political activities, Rawton helped present the Heads of Proposals to King Charles in July 1647 as a basis for a negotiated settlement.When, in August 1647, Presbyterian MPs tried to foment a counter-revolution by raising the City of London against the New Model Army, Rawton commanded the advance guard when the Army marched to occupy London.