I've had a thought as I've played Reforger, and anticipate Arma 4 to have similar issues I'll elaborate on.

Feature: Improve 2D optics from the current "black tube" where it's as if you're viewing the reticle from inside any given scope, and instead use the Picture-in-Picture model of the housing and reticle, but zoom in the players view that surrounds the optic. Essentially, this would make the optics function exactly like Arma 3.

I bring this up for 2 reasons:

1. Personal taste. In this game, I prefer the 2d optics as I feel less input lag in my mouse movements, likely due to better performance.

2. I've seen complaints from console players about performance, and issues when aiming down sights. I believe the PiP optics are a major contributor to this, as even on my PC (RTX 4090, 5800X3D, 32Gb 3200Mhz RAM, game installed on an M2 SSD) the game will "tank" somewhat and lose a good chunk of performance.

2D optics would be great if they were reworked. As of now, they are nearly unusable except in niche situations. Moving while aiming, for example, is very much a disadvantage on any optic when using 2D rather than PiP.

If 2D optics are left as-is, then I'll bet Arma 4 will suffer the same problems and may even be worse considering that game is meant to be greater in scope compared to Reforger. Offering a viable 2D optic option would drastically help players on lower end rigs, and even players like me on high end rigs, have better performance and an overall better experience.

For further reference of what I'm talking about, I've attached a couple screenshots of Arma 3's MRCO (I believe) optic that's being aimed at a distant target. No PiP, the entire FOV is zoomed in, meaning the game doesn't effectively need to be rendered twice to support the PiP function.