Halo 3
Rapidfire / Shield Shredders: the spiker, the assault rifle, the plasma rifles, SMGs, Needler, and the plasma pistol. (6)
Close-kill / Mobility rewarding: Mauler, Shotgun, sword, hammer. (4)
AOE Ranged / Grouping: Rocket Launcher, Brute Shot, Fuel Rod Cannon. (3)
Precision / skill: Magnum, Carbine, Battle Rifle, Beam rifle, Spartan Laser, Sniper rifle. (6)
6 skill weapons, 3 grouping based weapons, 4 mobility rewarding weapons, 6 shield shredders.
Halo infinite
Shield Shredders: Assault Rifle, Needler, Disruptor, Sentinel Beam, Plasma Pistol, disruptor (6)
Mobility rewarding: Bulldog, Heatwave, Sword, Hammer. (4)
Grouping: Ravager, Rocket Launcher, Cindershot, (3)
Skill: Battle-rifle, commando, sidekick, sniper rifle, pulse carbine, mangler, stalker rifle, shock rifle, skewer, Hydra (10)
(I would put hydra in grouping, but i’ve only ever killed people using direct hits, or tracking them in vehicles.)
Halo infinite does have a sharper skill vs other type weapon grouping, but this is only because there are more skill based weapons total. The original non-skill number was 6 4 3, and they stuck to that number. Possibly to their detriment. They included a higher number of skill based weapons, though, and mobility rewarding weapons are more rewarding in games where you can cover more ground more quickly. Counterwise, grouping weapons are less effective when people can sprint, and you’re more likely to get one person than two people even if you aim well. I don’t think the problem is necessarily that there are fewer low skill weapons as it is that the mobility weapons are more rewarded by the model, and the grouping weapons feel kinda lackluster because they’re not as deadly as they were in prior games.