Tried multiple things and cant seem to get the Masters health to increase. He die's after a few shots with any calibre.

Here is my mod list, maybe a conflict somewhere (maybe Summer Chernarus)? I did add PvZmod's to the Servermod list to test, but still not increasing masters health:

mod=
@CF;
@Dabs Framework;
@PvZmoD_TheDarkHorde;
@PvZmoD_CustomisableZombies;
@PvZmoD_Spawn_System;
@DayZ-Expansion-Core;
@DayZ-Expansion-Market;
@DayZ-Expansion-Name-Tags;
@BuilderItems;
@NatureOverhaul;
@Summer_Chernarus;
@SkyZ - Skybox Overhaul;
@VPPAdminTools;
@DayZ Editor Loader;
@MRTsStatBars;
@MRTsCustomGUI;
@ModdedHudFramework;
@Code Lock;
@BaseBuildingPlus;
@Basic Territories;
@BasicSpawnSelect;
@SIX-DayZ-Auto-Run;
@Unlimited Stamina;
@Custom animations;
@Inventory Move Sounds;
@Mag Obfuscation;
@Better-Snap-Sounds;
@Dogtags;
@GoreZ;
@Flying Birds;
@Better Inspect;
@BulletStacksPlusPlusEnhanced;
@Care Packages;
@Chernarus Battalion Headquarters Skalisty Island;
@ZStuff;
@BuildingsMegaModPack;
@IndustrialModPack;
@TerrainIslands;
@CarCover;
@Free Helicopters;
@CJ187-MoreMoney;
@CJ187-LootChest;
@CJ187-MoreCrashsites;
@KeyCard-Rooms;
@Breachingcharge;
@COCAs_NoVehicleDamageMOD;
@MuchCarKey;
@MuchStuffPack;
@dbo_creatures;
@DBO_creatures Jushdrugs Edit;
@Erapulsar_Zombies;
@IRP-Land-Rover-Defender-110;
@CrSk_HMMWV_PMC;
@AdditionalMedicSupplies;
@OG Gold Weapon Pack;
@Advanced Weapon Scopes;
@SNAFU Weapons;
@Tactical Flava;
@MMG - Mightys Military Gear;
@Cl0ud's Military Gear;
@Cl0ud's Military Gear Expansion;
@Full Metal Panic Server Pack

servermod=
@AdvancedGroupsServerside;
@ZombieSpawnTool;
@InventoryInCar;
@PvZmoD_TheDarkHorde;
@PvZmoD_CustomisableZombies;
@PvZmoD_Spawn_System

The load order is not important.
If you use both pvzmods the valus in the PvZmoD_CustomisableZombies_Characteristics.xml are used.

Note that you can set the "Debug_Mod" value to 2 in PvZmoD_CustomisableZombies_Globals.xml to see the damage you inflict to zombies to help you to set the good values.