I would love to see a wind indicator spray added. It would be extremely useful for people playing with the HUD turned off, especially because you can’t always look at the landscape to determine the wind.
It would just be a simple consumable spray that you put out in the air that drifts with the wind for a bit, just like the one in theHunter: Classic. It could also help determine the wind speed which could make it a useful tool for bowhunters as well.