env_dust
/*QUAKED env_dust (1 .5 0) ? 
Generates dust and rock over an area. This is triggerable.
-------KEYS--------
count - number of rocks (default 1 rock per 28 x 28 square)
*/

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env_smoke
/*QUAKED env_smoke (1 .5 0) (-4 -4 -4) (4 4 4)  START_OFF
Generates steady puffs of smoke.  This is triggerable.
START_OFF - smoke will start off
-------KEYS--------
scale - size of puff  (default 1) range 0 - 8.
angle - direction puff is to move (default 0)
speed - how quickly puffs move (default 100) range 10 - 2500
distance - how far smoke will move before disappearing (default 100) range 1 - 255
wait - time in seconds between puffs (default 5) range 1 - 255
*/

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env_muck
/*QUAKED env_muck (1 .5 0) ? 
-------KEYS--------
*/

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