Musketeer

Etymology
.

Noun

 * 1)  A fan, supporter or partisan of.
 * 2) * 2014, Charles Morris, "The early days of Tesla", Charged: Electric Vehicles Magazine, Issue 14, June/July 2014, page 62:
 * This was the rock that Musk and his Musketeers planned to build their company on.
 * This was the rock that Musk and his Musketeers planned to build their company on.