Montana tags are not provided by outfitters...they are issued to the hunter, and are good all season long. The majority of the state can be hunted on the general tag. OP can go back with a rifle if he wants to later this year and punch his tag.
I assume he's a non-resident, had a contract with the guide and purchased the second "outfitter" preference point to get his elk license this year. (The guide, in the meantime, submitted a list to FWP of hunters who they had a contract with and which confirms that the hunter can be provided the extra point). In such circumstances, the tag is ONLY good while hunting with the outfitter, not before, not after.