Mobility: Visibility vs Noise generation

[FAKTOPUS 4]

i am relatively new to dayz, but i had an idea. now bear with me here and give it some thought. As it is now, if you are skull dragging through a town zombies give zero fucks. why? because you make little to no sound, and little to no visibility... in reality, if you are down on the ground crawling, you make a lot of noise. especially on gravel. if you are in a building proned out cause crouching or walking will alert zombies on the other side of a wall, that doesn't seem realistic to me. now comes the thinking part. go outside and try this. get on the ground and crawl, make a note of the noise. then crouch and run (like fast crouch in the game) you make more noise than prone. but if you take it slow (such as ADS mode) you can be almost silent! now heres the kicker. if you are on concrete, and you stand up, if you just walk (again like ADS mode) you can make next to zero noise. in my opinion, the game shouldn't be "always crouch or prone or zombies are going to get you instantly" if you are indoors, and walking upright while in ads, the only thing that should be there is visibility (which wouldnt make much difference since there are walls all around you!)

so heres what im thinking in numbers form (just rough esitmates, dont be too critical)

prone: 20% noise meter, 0% visibility

crouched: fast: 25% noise, 30% visibility

ads: 10% noise, 20% visibility

upright: fast: 30% noise, 100% visibility

ads: 0% noise, 90% visibility

keep in mind that the % is rough, and im going by gunfire is around 100% noise, and standing up running is 100% visability.

may not be much different from the way the sound mechanic works already... but it sure seems like if im prone, i can go rough up a zombie's genitals and they have no idea im there... but the moment i crouch to move from 300 yards they are on me instantly from behind a building, over a river, through a forest, and beyond... please add your own ideas on movement like this: is it already balanced? (y/n) do you have an alternative to my noise/visibility values? (y/n and numbers if you can)

i welcome criticism, so i wont get butthurt if you think its a dumb idea.