Halo Infinite is one of the few games that features equipped weapon during cutscene. I find it amazing and thus recorded all cutscenes that display all kinds of equipped weapons.

Do take note that I am not running any kind of mods so I am only showing weapon that are unlocked throughout the game, especially on the earlier part of the game.

Lil Halo portals:
00:00 Full cutscene with MA40 AR
00:30 BR75
00:43 VK78 Commando
00:57 MK40 Sidekick
01:10 M41 SPNKr
01:23 Pulse Carbine
01:36 Ravager
01:49 Plasma Pistol
02:02 Needler
02:15 Needler (depleted)
02:28 Disruptor
02:41 Mangler
02:54 Heatwave

It takes a lot of time for me to make this video (had to restart and basically re-run the whole level in order to record another weapon's cutscene. If you like this video, please drop a like and I will appreciated of it!