I did a search and didn't manage to find any previous mention of this, but if there is some obvious source I have overlooked, forgive me.
What positions do the colors of the BoB jumpsuits represent?
In M2, Durandal says that the green BoBs are Airlock technicians... but Forge and Anvil does not agree. However, I'd much sooner listen to Durandal (which in many cases would be ill-adviced).
I am pretty convinced that the red ones are Security personnel.
Also, in M1 there are yellow BoBs, whose roles I haven't the faintest idea as to what they are.
Correct me if I'm wrong, but Anvil says