I have heard many complaints about aiming in Infinte and I might have figured out where these complaints are coming from as I think it feels smooth and almost perfect for me. The only thing I don’t like is that the max sensitivity is too low.
Try this controller set up. I made it too feel like the older Halo games while still being able to zoom with something other than clicking the stick in. Maybe this will help.
A: JUMP
B: MELEE
X: RELOAD
Y: SWAP WEAPONS
RT: SHOOT
RB: EQUIPMENT
LT: THROW GENADE
LB: ZOOM
LEFT STICK: SPRINT
RIGHT STICK: CROUCH
DPAD: set this up how you want to to drop weapons, swap grenades, use the AI pulse, and to ping targets
Also MAX OUT AIM ACCELERATION!!!
In every game I play I either max it or turn it off if possible. For those that don’t know: aim acceleration is the speeding up of the turning of the camera the longer you hold a particular direction. This always throws me off as growing up every game seemed to have linear aim acceleration which means it just always turns at whatever sensitivity you have it set to instead of ramping up to that sensitivity the longer you push a particular direction so maxing out aim acceleration should make it feel more linear as it starts closer to your chosen sensitivity. Maybe that is where a lot of your problems are stemming from and I think if you make this change it would help a lot. Turning it as low as it can go doesn’t turn it off in Infinite so don’t do that. Aim acceleration, when not linear, has always made me either over aim or under aim which I am willing to bet the biggest problem so it feels like aim assist or bullet magnetism are too low.
As a 20 year veteran of Halo who has been playing since I was 5, I would say please give this set up a try as I was able to do really well and get multiple games in a row over 20 kills on BTB and was able to pull off some really good sniper multikills along with finishing top 3 if not top place on the leaderboards. It will take a few games to get used to probably but it has worked for me. I am also not a sweat at Halo, I’d say I’m good but not great.
Edit: additionally people have suggested to change the Field of View (FOV) and stick deadzone. For FOV I would suggest if it feels like no matter what sensitivity you put it at you are turning too fast or can’t see enough then up the FOV. Additionally increasing the FOV will help with recoil control as the percentage of the visual of your screen rising will be lower but if things are too hard to see even at closer ranges then lower the FOV. I play with my FOV 90 to 105. For deadzone, well that will vary per controller as stick drift is an unfortunate reality so if your stick moves your camera or spartan on its own up the deadzone until that no longer occurs. The deadzone is a radius around the center of your stick input that is not registered. This was made to help stick drift because as controllers get more use the sticks will wear out and not be able to hold there original position as well so they may pull you certain directions when you don’t mean for them to.

