Description :
I more than am sure that not at all complete darkness costs on servers .And this addition will help you to replace a grenade Flare on GasNade ( carbon monoxide ). What plugin worked you it is necessary to clean tuning in zombieplague.cfg this :
On this :
If a zombiе will be in to the smoke - his HP will be taken away and all of it will be accompanied sounds .

Tuning :
zp_gasnades 1 // 0/1 Disable/Enable the whole plugin
zp_gasdmg 70 // How much damage the player takes every check cycle, 0 to disable damage (see zp_gascheck)
zp_gascheck 3 // Check period in seconds
zp_gasradius 180 // Smoke Radius (best is 170 - 230)
zp_smokegasp 1 // 0/1 Makes players gasp/cough in smoke
zp_gasobeyFF 0 // 0/1 Makes plugin act or not as cvar mp_friendlyfire
zp_gas_restore 0 // 0/1 Restore or not HP (if zp_gasdmg > 0)
zp_gaslighting - Enable/Disable lighting flash (default 1)
0 = Disabled
1 = Enabled with random colors
2 = Enabled with RGB format colors
zp_gaslighting_r : Red (default 255)
zp_gaslighting_g : Green (default 0)
zp_gaslighting_b : Blue (default 0)
zp_gaslighting_trails - Enable/Disable Smoke Grenade Trails
0 = Disabled
1 = Enable
Trails color are Green