Im not familiar with the musketeer, but its probably not great in the goldfields Indi. Its a coin & relic detector
this extract from the Minelab website;
"The Minelab Musketeer Advantage detector was released in April 2002 and is no longer in production. The Musketeer Advantage was a coin and relic detector utilising VLF technology. Please see the product manual located on the downloads page for more information on this model."