These look like a good time.
There are six new weapons and one new grenade in the Promethean weapon lineup, which you can read more about below and then watch the trailer to see them in action.
Boltshot - Forerunner particle dilator used for both its precision at mid-range and its burst functionality when up close.
Suppressor - Fully automatic Forerunner infantry weapon, firing bolts of hard light in rapidly accelerating succession.
Scattershot - Close-combat weapon with a deadly blast at short-range and a versatile ricochet effect against hard surfaces.
Lightrifle - Precision weapon that uses particle acceleration to fire beams of hard light for mid-range to long-range combat.
Binary Rifle - Extreme-range sniper rifle, designed to take down even heavily armored infantry with a single shot.
Incineration Cannon - Powerful shoulder-mounted weapon that launches highly charged particles at a target with explosive results.
Pulse Grenade - A field-effect-generating attenuation device used to overload both simple and complex power networks, forcing them temporarily offline.