I am modeling a new building on a university campus following LEEDv4 Option 1, Whole Building Energy Simulation.
Heat Recovery Chillers are providing 44% of the cooling load of the building and the rest of the load is provided by campus chilled water.
Heat recovery from the chillers is the primary heating source for the building with campus steam providing what cannot be met by heat recovery.

Which path from the LEEDv4 Reference Guide for District Energy Systems should be followed for HVAC systems that use campus systems for partial loads?

How is the ASHRAE 2010 Appendix G baseline modeled when the proposed model uses partial energy from a district energy system? Does the baseline model need to be modeled with 44% on-site equipment with DES back up energy as well same as the proposed model?