How to add Smokes in map?

smoke grenadesmoke is impossible. but you can add sprites with env_sprites or cycler_sprite

then point the sprite name to the sprite which you want to show up in the map.

You need files with the ending/extension ".spr". Search for such files on your computer. As far as I can remember there are plenty in the directory of good old Half-Life 1 (not the steam version) if you have that installed.

You could also search with google. I bet there are some sites where you can download sprites from.

there are probably sprites in your cstrike/sprites folder too haha :D

ive had a problem when trying to use sprites too, where the black surrounding the sprite shows up in game. how do i get rid of it?

brilliant thx fatalis