Zombie Army 4: Dead War gives you access to an arsenal of different weapons which includes rifles, submachine guns, shotguns, and pistols. Each of these weapons can be further upgraded for mods which will enable them to perform better against the zombie hordes you encounter. Whenever you come across a new weapon take the time to experiment with it so you find the ones that best suit your playstyle.
Level Up Quickly
Aside from the campaing missions in Zombie Army 4: Dead war there are also extra chapter challenges available which will grant you XP when you complete them. These Chapter challenges are worthwhile doing as the XP you get from them will help you to level up quickly.
Play with Friends
Although Zombie Army 4: Dead War can be played as a solo venture you will discover that playing alongside friends will be a more enjoyable experience as the cooperative gameplay will bring deeper, more sophisticated challenges to the campaign missions as they will require you to combine powers to fullfill the multiple objectives.
Take Advantage of Safehouses
Scattered throughout Zombie Army 4: Dead War are safehouses which act as points of salvation that give you a temporary respite from the undead hordes. During the time you have in a safehouse be sure to collect any amunition, weapons, or useful items that are there. Also use this time between missions to upgrade your weapons with the workbench.
Use Melee Attacks
Try to save ammo and other supplies whenever possible by using melee attacks. Putting together a combo 10 melee attacks will enable you to perform a Melee Takedown attack which will also slightly heal your character.
Weapon Assist
Zombie Army 4: Dead War has a Weapon Assist mechanism which when unlocked will slow down time around you while you shoot giving you better chance to kill more. Weapon Focus Weapon Assist becomes unlocked when get 10 kills in a row with a secondary weapon. Once charged, you can press L2 and then R1 to activate it.
Weapon Upgrade Priority
You will quickly learn that the best upgrades for your weapons in Zombie Army: Dead Army are those that allow them to deal elementary damage such as Incendiary, Electrical, or Divine as their affects spread to nearby enemies allowing you to take down multiple foes simultaneously. Always make getting this type of ugrade for your weapons a priority.
Experiment with Weapons...