First off, the plugin's structure is based off guncontrol(http://forums.alliedmods.net/showthread.php?p=1020236
) by AtomicStryker, so this is his coding reworked for this purpose.
Well this is from a request by IronWarrior(http://forums.alliedmods.net/showthread.php?t=129947
This plugin will replace 1 incendiary ammo pack into an explosive ammo pack by a chance setting.
l4d2_eammo_chance "3" if set to 1 it will always replace I ammo with E ammo if set to 2 it will do this half the time and so on.
l4d2_eammo_version you know what this does.
1.0 - Initial Release
1.1 - Fixed Incendiary Ammo being replaced when gamemode was not versus or teamversus, also unnecessary coding was removed.