I've been working on the colours for the figures and have been studying various pictures and a set of real MTP uniform jacket & trousers to get the correct colours. British MTP is made up of six colours so I started by selecting paints that I thought would work and then painting little test panels on a piece of paper. Using this and the uniform I have then worked out each colour and the resulting vallejo paint or mix of paints to match.
The figures have had a primer followed by a coat of vallejo 885 pastel green which is matches the uniform colour very well. As this is the predominant colour it makes sense to use this as a base coat.