So I have an interesting issue: in Halo CE on PC, when firing a weapon, Mouse 1 always fires, no matter what keybind I have set, and once I release the initial click, the next click reloads the gun. If the gun has full ammo, then it fires, but if it is missing any ammo and can reload, it reloads. I have Mouse 1 bound to fire and R bound to reload, but something is overriding the keybinds. Binding fire and reload to different keybindings allows me to fire normally with the new key, but Mouse 1 still behaves as described.
I’ve tried two different mice (Logitech M720 wireless & G502 wired), restoring the bindings to defaults, and uninstalling/reinstalling the game, but nothing seems to affect it. For some reason, Mouse 1 is also bound to both fire and reload.
This only happens in Halo CE, not in any of the other games, and opening a ticket with Halo support has been less than helpful (they suggested trying a new mouse and restoring defaults, then gave up).
Has anyone else experienced anything like this or have any ideas on how to fix this? Currently I have to remap my mouse in G Hub when I want to play Halo CE, which is annoying.