Mine has to be the brute shot.
Sniper Rifle. Any kind of any model. This extends to any beam rifle and binary rifle. I am a sniper at heart.
The grenade launcher from Reach. That thing was so much fun
If they had a BR with single shot option, that would be it.
Halo one pistol.
The Halo 2 Beam Rifle Delta. That gun is so -Yoink-ing fun to use!
M6D, or the Shotgun.
Though the Needle Rifle from Reach will always be a good one
Sniper Rifle, BR, DMR, Shotgun, Energy Sword, and SAW
Halo 2 Beam Rifle Delta
Reach sniper rifle
Most of the older weapons but the SPNKR is my favourite
The Gravity Hammer, loved to see my enemies fly.
Halo 2 BR
I’ll gladly take a Railgun on any occasion.
My favorite is my Spartan.
Mine has to be either the Plasma rifle or the Needler.
Reach’s Plasma launcher - So much firepower. We used to go on forge with bottomless clip, get someone in a Falcon and just launch plasma at it continuously - It was such a cool sight to see the pilot frantically trying to escape the ever increasing mass of plasma bolts tracking them down. Fun too. Good 'ol Reach times…
M6D Magnum for me.
Assault Rifle and Energy Sword.
The DMR. I’m not a big fan of the three-shot burst of the battle rifle.