Yes, Mountain Collective pass holders have access to the shuttle provided at Ski Banff free of charge, members are allotted two included SkiBig3 Tri-Mountain Area Lift Tickets.
The 50% off lift tickets individuals purchase are shuttle accessible SkiBig3 Tri-Mountain Area Lift Tickets as well.
The shuttle between Ski Banff is limited to transportation to each of the mountains not from lodging, hotels, etc. to the resort.
For more information, follow this link: http://www.skibig3.com/ski-shuttle/