Mission Equipment, found on page 262 of the sixth printing of TechManual, has a configurable weight. This "may be any weight desired up to any remaining weight after the installation of all other battlesuit components".
Is the capacity of Mission Equipment determined at the point a unit is designed, or does it consist of all remaining weight capacity on a suit at any given moment? In particular, if a design using modular weapon/manipulator mounts and Mission Equipment does not use all available weight for the former, does that mean the Mission Equipment has a higher capacity? Or is the capacity fixed regardless of what is in the mounts, such that the unused weight is wasted?
