Suggested fix: Add the option to configure the audio output device.
It happens to me when my Foobar2000 take exclusive control over the audio device, the game is broken after I stopped using it.

This makes the backup sight almost useless, especially when you are going to be using it at night most of the time.

the rain fading too quickly is definitely a huge issue as it makes the rain have a very low sense of depth.
Also, splashs on the ground is almost a must, and I can't see a big difficulty in implementing it.
The effect of gusts on raindrops would be awesome and add a lot of immersion to the world indeed.

@AD2
If that is the right attitude I'm sure many of us will not have bought this game in the first place.

We all want that to happen, but lets face it, Arma 3 has a different focus compare to DCS or VBS in terms of consumer base and goal, right now it's just not worth it in almost every perspective.

Using a joystick.
I am not sure if this is the same issue, but I found out that when the vehicle speed increases, the steering deadzone increases. When travelling at about 105km/h, the deadzone is a crazy 60%. I can imagine this causing a jerking steering with keyboard.
This seems to occur reguardless of the vehicle type.

Either completely remove the damage indicators and show the damage in cockpit in the form of hydraulic pressure, engine RPM and aesthetic changes (Except the wheels maybe, because you don't have force feedback and you don't have anyway of knowing that.)
Or use a diagram for each vehicle to show the damage of the specific parts.

I have played FSX HTR, and from that experience as a reference I will agree that the anti-torque rotor is underpowered in Arma, especially the Mi48, which has a coaxial design yet have the same yaw authority as other aircraft in the game.
However, this is a flight model that is expected to be improved, so there is no real priority to this issue.
The TOH FM is acceptably realistic, and we can look forward to that.

Electric motors have insane to almost instantaneous acceleration in small scale, and right now those UAV feel like they were fed with a battery of too low voltage :P
Also I think they didn't isolate the thing between collision and being shot at, lead to the issue of landing and breaking it, which is really hard to happen IRL.

Honestly I don't even care if they buy the technology from Oovee, I just so want the feature to be in the game! It would add a whole new level of realism and immersion, like actually getting stuck in the mud and have to radio the combat logistics company for help, and no more super slow hill climbers.
I just think that they are not experienced with the PhysX engine and can't explore the true possibilities that lies beyond, building destruction is only the basics.
Well you can also blame the weird multiplayer framework that they don't seem to plan on changing.

@mwnciboo
since you are dishing out authorities, experiences and all that, I am not going to argue with you about the operating procedure of room clearing in standard operations, as it is true that I lack those things.

However as a consumer who aim to improve the quality of the game, I will point out that we care more about options and freedom of experience. If I want to learn about the real procedures of room clearing, sure I can take it to the in-service soldiers, and attend drills and lectures. Having an option to open doors Analogously does not hinder my ability of doing so.

However, this ability adds realism and freedom to the sandbox and my experience. What we as sandbox lovers want is the ability to do things that we can do in reallife, not what we NEED to do in reallife. We freely and truly experience the effect and consequences of our every action, and we find enjoyment within.

It is ok to increase FOV / Have some change in contrast on the screen, and improved dust and sound effects.
But definitely NO BLUR. Human eyes just dont simply blur up when you are scared.

Also I would suggest some form of minor splash damage when the bullets land really close to you, such as a disturb in movement pace as the sand and dirt hit your feet, and the shattered bullet shooting metal fragments at you. When a bullet land 10cm away from me I just feel really lucky, and that is not right.

It would be quite revolutionary as there is no landscape-SkyBox feature in Arma that I am aware of.

As long as you are not in control of the chopper, you should be able to jump out at any moment in time, at any location. I don't care if you need 2 seconds to open the door, or you don't carry a parachute.
It is really stupid when the chopper is moving at 15km/h and 2m above ground, and people just cant simply jump out, except the copilot who can eject.

So ATM the copilot seat is the safest seat on a helicopter :)

I think that this is more of a major issue.
The font designer is really inexperienced or just really stupid.
While I agree that it looks rather nice, the letters just looks way too similar and hard to distinguish.