//register the cvar
cvar_knockback = register_cvar("zp_svd_knock", "2") // nade knockback
cvar_speed = register_cvar("zp_svd_speed", "3.0") //speed of weapon
cvar_recoil = register_cvar("zp_svd_recoil", "0.2") // recoil of weapon
cvar_dmg_multi = register_cvar("zp_svd_dmg_multi", "8") // damage multipler
cvar_trail = register_cvar("zp_svd_trail","1") //m203 trail
cvar_radius = register_cvar("zp_svd_rad","300") // m203 radius
cvar_damage = register_cvar("zp_svd_dmg","2000") //m203 max damage
cvar_bonus = register_cvar("zp_svd_bonus","2") //reward when kill ZM by m203
cvar_reload = register_cvar("zp_svd_reloadtime","3.0") //m203 reload time
cvar_remove = register_cvar("zp_svd_remove","0") //one round?
cvar_zoom = register_cvar("zp_svd_zoom", "1") // weapon zoom?
cvar_weapon_cost = register_cvar("zp_svd_cost", "50") //weapon cost
cvar_m203_cost = register_cvar("zp_svd_m203_cost", "2") //m203 cost
cvar_m203_nade = register_cvar("zp_svd_m203_amount", "5")// m203 nade when buy
cvar_weapon_knock = register_cvar("zp_svd_knock_power", "4") // knockback power
cvar_enable_knock = register_cvar("zp_svd_knock_enable", "1") //enable knockback
cvar_clip = register_cvar("zp_svd_clip", "20") // clip of weapon