Only play gunshot sounds once or twice

This helps cut down on gunshots quickly maxing out the sound channel count during fights. The tradeoff is that gunshots will sound quieter now, but I feel like this is worth it to avoid cutting off other sounds entirely.

Author: thecraftianman

lua/effects/acf_muzzle_flash.lua

@@ -35,12 +35,8 @@ function EFFECT:Init(Data)
 			-- NOTE: Wiki documents level tops out at 180, but seems to fall off past 127
 			Sounds.PlaySound(GunPos, Sound, math.Clamp(SoundPressure, 75, 127), Pitch, Volume)
 
-			if not (Class == "MG" or Class == "RAC") then
-				Sounds.PlaySound(GunPos, Sound, math.Clamp(SoundPressure, 75, 127), Pitch, Volume)
-
-				if SoundPressure > 127 then
-					Sounds.PlaySound(GunPos, Sound, math.Clamp(SoundPressure - 127, 1, 127), Pitch, Volume)
-				end
+			if not (Class == "MG" or Class == "RAC") and SoundPressure > 127 then
+				Sounds.PlaySound(GunPos, Sound, math.Clamp(SoundPressure - 127, 1, 127), Pitch, Volume)
 			end
 		end