Recently the Army came out with a new multilayer (7 I think) system that was based on a slightly (2-3 years) older system developed by Mark Twight for special forces.
The manual for it is pretty interesting, towards the back it gives a list of scenarios and what items in the layering system should be worn during those scenarios. Its pretty heavy on the "warm and wet" concept; the goretex jacket is not supposed to be used unless you are in a static position.

I hope this link works: http://www.sharepdfbooks.com/L5D7OELUNVQ2/084917.pdf.html