There are a few jutsu that would be able to win this just on sheer speed, power, or versatility. Obviously being able to completely change the terrain of the battlefield is an ability that would make up for the point and kill ability of guns. That said. I'd put a soldier that qualifies at sharpshooter above 90% of Naruto characters. A whole infantry platoon? Could probably bring down half the village.
Its going to be the ninja like Zabuza, Kitsuchi, Gaara, and in an ambush situation Gai and Lee could probably speed blitz.