Zombie Plague is a Counter-Strike server side modification, developed as an AMX Mod X plugin, which completely revamps the gameplay, turning the game into an intense "Humans vs Zombies" survival experience. This is a update of Zombie Plague Mod 4.3 Fix5a from MeRcyLeZZ.
 
v4.4 Fix5a (Nov 27, 2015):

New Gameplay Modes: Assassin, Sniper, Armageddon, Apocalypse, Nightmare
Added support to configure the weapons of the bots
Added support to configure the survivor aura color
Added new menu (Admin Modes Menu)
Added new grenade sprites
Fixed the bug of zombie bots buy extra items
Updated the hud stats of the humans and zombies
Added new cvar to give armor to human (zp_human_armor_amount)
Added new cvar to block buying extra items if the round does not start (zp_block_buy_extra)
Updated the extra items menu (Zombie Plague 5.0 style)
Removed the 'Help' menu (it is not needed or used)
Fixed: give additional items when the player spawn
Blocked the spawn weapons (Glock18 & USP)
 
Weapons of bots:
Add the name of the weapon (weapon names) you want to enable (zombie_plague_v44.ini)

Weapon Names:
give_item() accepts a string name of the weapon/item... 
 
Example for a Deagle: give_item( id, "weapon_deagle" ) 
 
These are the item names: 
Code:
// Weapons: 
weapon_usp 
weapon_glock18 
weapon_deagle 
weapon_p228 
weapon_elite 
weapon_fiveseven 
weapon_m3 
weapon_xm1014 
weapon_mp5navy 
weapon_tmp 
weapon_p90 
weapon_mac10 
weapon_ump45 
weapon_famas 
weapon_sg552 
weapon_ak47 
weapon_m4a1 
weapon_aug 
weapon_scout 
weapon_awp 
weapon_g3sg1 
weapon_sg550 
weapon_galil 
weapon_m249 
 
// Ammo: 
ammo_45acp 
ammo_9mm 
ammo_50ae 
ammo_357sig 
ammo_57mm 
ammo_buckshot 
ammo_556nato 
ammo_762nato 
ammo_338magnum 
ammo_308 
ammo_556natobox
 
// Items:
item_kevlar
item_assaultsuit
weapon_flashbang
weapon_hegrenade
weapon_smokegrenade
item_thighpack
item_nvgs
weapon_shield

[Weapons of the bots] (randomly chosen if more than one) // Line 217
BOT WEAPONS = weapon_m4a1 , weapon_ak47 , weapon_p90 , add_weapon_name_here // Line 218
 
Requirements:
Mods: Counter-Strike 1.6 or Condition-Zero
AMXX: Version 1.8.0 or later
 
Installation:
Download and extract the contents from the .zip files to your server's mod directory (cstrike or czero) and make sure to keep folder structure
For further information on the plugin, including cvars and commands, take a look at the included patch_changelog.txt file