Can't play Original MudRunner Xbox one x

Hi. Does anyone know how to play mud runners, the original Russian map/ Vehicles In the Mud Runners game. I have it and the "America wilds" DLC installed. When I launch the game on xbox one x it goes right into the American Wilds DLC and the game doesn't give me a choice to play the original game with Russian map & Vehicles. Thanks for any help.

It works problem solved

Hi Jay,

I have got the problem, i bought the american wilds as a game disc which included the mudrunner game, the ridge, old timers, and the valley as dlc.
when i loaded the disc it it only gives me the option of amaerican wilds with no option on the menu for the rest of the content.
how did you manage to access the rest of it and the base game please ???