How many guns are there online on Halo 3?

In Halo 3, there are a total of 11 primary weapons available for players to use in multiplayer and campaign modes. These include iconic firearms such as the Assault Rifle, Battle Rifle, and DMR, along with various other weapons like the Shotgun and Sniper Rifle. Additionally, there are power weapons, grenades, and melee options that players can utilize during gameplay. Overall, the diverse arsenal contributes to the game's dynamic combat experience.