Mitch Barnett has pledged not to overthink his new leadership role as he prepares to lead the Warriors into their NRL season opener in Las Vegas.

When a wrist injury sidelined regular skipper Tohu Harris, versatile forward Barnett took on the Warriors' captaincy midway through last season.

It finished as Barnett's best year in the NRL; he averaged more run metres, tackle breaks and better tackle efficiency than in any of his nine previous campaigns.

During his stay as captain, Barnett also became only the second Warriors player to represent NSW in the State of Origin after Ryan Hoffman in 2015.

The 30-year-old will share the Warriors' co-captaincy with gun recruit James Fisher-Harris in 2025 after Harris' injury forced him into retirement.

"I did it for the majority of last year so nothing really does change for me," Barnett said.

"Having 'Fish' alongside me as a co-captain is great. We balance each other out.

"For me, I'll always learn little things on the run, things I could've done better, things I did great. But I'm not overthinking the role, I'm just trying to lead with my actions."

Barnett assumed the captaincy for the first time mid-game, when Wayde Egan was concussed in an eventually famous defeat of premiers Penrith at last year's Magic Round.

Barnett went on to skipper the Warriors to a come-from-behind defeat of the Dolphins the next week, and a memorable last-gasp win over Cronulla in Shaun Johnson's last game.

For his next assignment, he will guide the Warriors into Las Vegas' Allegiant Stadium, where the Kiwi side begin their quest to bounce back from a disappointing 13th-placed finish.

Barnett can't see the team becoming overawed by the bright lights of Las Vegas against Canberra.

"The more you think about it and change things, it takes away from your identity. We need to go over there and do what we're good at," he said.

Coach Andrew Webster will encourage his side to soak in the atmosphere at the home of the NFL's Las Vegas Raiders.

"To say you're playing here is an unbelievable experience for them," he said.

"But I want them to remember it for the right reasons. One is that it kicked our season off really well, with a great win in a great venue.

"We can actually draw on that experience, how much fun we had. I reckon it's a great mental hurdle that will help us for the rest of the season."