a quick internet search showed this, not positive is correct but this is what it gave me
AI Overview
In the Montana Governor's Cup Walleye Tournament results sheets, the Type column represents the registration or team classification category of the participating two-angler team.
Montana Governor's Cup Walleye Tournament +2
Classification Types
AT: Adult/Team (two adult anglers, standard open or general team classification)
MC: Mixed Couples (one male and one female angler)
AC: Adult/Child (one adult and one youth/child angler)
Facebook·Montana Governor's Cup Walleye Tournament
If you need help checking specific standings or rules from the Official Results Page, let me know which team or year you are looking for!