Many of these mods I play daily. But the environmental effects are not captivating enough, what makes the game very boring sometimes. Servers are often very sunny, what makes it too bright.
I'm not on a summer vacation! The weather changes too slowly, sometimes after 4 hours of non-stop playing i did not see a single drop of rain or a thunderstorm. Dense fog patches are also missing. Or even better: fog that hangs low over the ground.

Arma maps are its best around 18:30, when the sun causes a blaze of orange flares which blinds you when you look straight at it.

I'm not a mission designer, but the post-processing color effect ''Real is Brown'' (for example) gives a special post-apocalyptic flavor to the game. Combined with dense fog, a bit of film-grain and some sinister sound effects you can really create a horror/zombie mood. Zombie's & Demons would fit great!

Also missing in Arma 3:

- Gore/Blood/Blow off limbs
- Snow! Blizzards!

Would it be possible to make this kind of server, with more variation in weather?

*More environmental ideas are also welcome!

Screenshot example 1 http://postimg.org/image/vtl4glx15/full/

Screenshot example 2: http://postimg.org/image/k5nehhiar/full/

(Zombies & Demons + Color Correction + Fog)