LM isn't OP. And in GNW there arent OP mains, just OP tactics.

Even the strong nins like Kyuubi Naruto, Susano's, Cursed Hidan etc can be countered.
But only if you actually build a team TOGETHER. GNW is about team play and make a team that works together.
Don't just go in with your strongest nins, that doesnt work at all.