A new function in map editor. Tile changer. You add two tile number (like #32 and #44) and it will change the first into the second one. (so it will replace all #32 tiles, into #44 tiles) In big maps, it would be helpful.

Well i dont know if it could be done with lua and i hope i dont get banned for posting this but maybe like running like if i press some key (can be changed in options or whatever)
the player will run but after several seconds or minutes the player will get tired where you will have to wait till his energy recovers to run again.

I'd like to have the ability to navigate through the server list using the keyboard.

E.g.: Up and Down keys for going server up and down (how obvious)
[R] for refreshing
[ENTER] for joining
etc..

not sure if already suggested

Weapon range should increase if the scope is activated.

Edit: Also, flashbangs wont flash team members to avoid team flashing (Unless friendly fire is on).

lower the amount of bullet spread on famas/glock when on burst, its not that big in any of the original games

Each scoped gun has its own scope image. Placed on the weapon folder.

Example:

aug_scope
awp_scope
g3sg1_scope

Map filter in the map browser of the editor like in New game's.

Fucntion for editor:
list of 3-5 last edited maps

And fucntion for TileFX which can move players

It would be nice if we could isolate the area in which played sounds.

heatvision..? ability to see heat (players) in smoke and such...

Throwing a smoke grenade should enable fog of war behind the smoke, you actually cannot watch through the smoke, so why should you be able to look behind it?

Turrets should use M134's firing sound.

If one player triggered a sound only the player can hear it. It's something for 1 player only and it does not affect other players.

Turrets should use their own sound.
Turret.wav, for example

How about customizable tower weapons using the existing weapons in the game, such as weapon towers with attached: flamethrower, laser, grenade launcher, rocket launcher, machine gun, or other weapon type making it customizable with any weapon ID plus if there could be added tower damage configurations for each weapon ID attached to the tower it'll be appreciated.

I personally think it's a nice idea ever since MiroslavR's Team Fortress 2D I've been thinking of this idea. It'd be great to have machine gun and rocket launcher towers however and it was really fun to experience that in TF2D, it was really fearsome towers I tell ya.

A startup music like in CS 1.6 would be nice

Music at the main menu of CS2D?

Seriously? No thanks.

It would be nice if you added a counter deaths and killings from all servers. For example - come on one server, killed 10 people, went to the other, killed 10, went into the account, and in the category of statistics would have written - 20 kills. And so for all time. It would be cool: D

mute system
if someone say to you something bad mute him from menu > playrs (left click on player name) > mute from chat