Hitler is basicly not giveing up from basicly A-Y but he Decides to Go to "Plan Z" Saying Create a Zombie Apocalips (Correct word) and it's Up to YOU (or 1-3 other Player{s}) to fight Agenst a WHOLE Army of the Undead and Rangeing From Simple zombies to Demonic Enemies while useing 3 Weponds types Riffle, 2ndary, and Sidearm and Diffrent items to Scale the War Like Gernades, Mines, ect and the enviroment between Strenght and Weakness, Now Who's ready to Kick some Zombie Butt!

Heres some guns Advaliable (some but not LImited to)
Mosin, Kar98, Type99 (riffles), Colt, Lungar (Sidearms) Shotgun, MP-40, Thompson (2nddary) ect.
Also as Tripwires, Gernades, Mines and Dinamite

here is Some Info of the Leading Undead from what i Know
Nazi Zombie- Slow but Varies of Melle attacks but More common but Varies Amoring
Kamakazie Zombies- Runs with Haste but Weak by any Shots but do NOT let this one get close it can have a Impact Better than the reguler Zombies (it has Gernades and Explosives!)
Zombie Elites- Slightly Faster than Reguler Undead but Weilds a LMG (and can Gun Butt) to End a Player by solo or Throw down a Player other than u
Undead Sharpshooters (or Snipers)- they Weild a Sniper riffle and NEVER get close to u Find a Green Light, Black Mist, and a Flash and u see that it can Destract u from other zombies but make this one Prioity #2 (other Enemies are #1) because it's Annoying and can Leep far Distance almost if u got eyes on it
Demons- these Guys can Take 2nd place on Health from the ZE's but they have a Range wepond that Acidentily Kills thier own Zombies but still touth to kill Due to Size it's the Next Best Destraction from Zombafied Snipers
Summoners- these Guys are 2nd least health from suicding Zombies but their #1 Piority is to keep Resommoning the Undead to Waste ur Bullets Find this Guy and Put a bullet to IT'S head to end it's Degree of Summoning School
Skellitions- These guys take a bit better Health than the Kamakazie Zombies beacuse they can take some bullets so the best way to end them (usualy on Cadet) is Melleing them (what they have no guts to fight Properly) but luckly they are not as fast as u thought.
Nazi Zombies 2.0 - Tougher With Additonal Armor Some Zombies have More better Armor than others Same speed and Reguler Health as Normal Zombies but Added Potection Agenst Bullets and Farther Blast Radius
Skelitons 2.00- Better Armor Than the Reguler Skelitons Added Protection agenst Bullets And Farther Blast Radius
Panzer Zombies- Juggernot Loaded Zombies Able to Leap small Distances and Unable to Get Knocked Down as easy but No Ranged Projectiles these Guys are Slightly Better than Nazi Zombies
Chainsaw-Wilding-Zombies (or CWZ for short)- These Guys are Annoying luckly there Only Advaliable in a Coulple Levels but They Weild Armor on the head Restricting Easy Kill for a Time but they can Cause Huge dmg to higher Difficulty

Nazi Zombies: Shoot them in the head (if higher than cadet Aim just higher than the head)
Kamakazie Zombies: Shooth them ASAP but u can let it go for a time to pretend it's a walking Explosive that can kill zombies, Dmg others or make a chain reaction to hurt other zombies
Zombie Elites: Stand far away from that as Possiple it's Least accurate from Snipeing Distance and Decent Accratcy Up close (and able to Gun Butt U)
Skelitons: Melle them (if they still stand as one repeat, They don't get Ranged Weponary anyways, Even if u see them as Light weight Plastic armor)
Demons: Act Like it's a ZE but Close (due to haveing it's Difficulty hitting someone)
Undead Sharpshooters: Find them ASAP OR Find them Last on the List and Keep Moveing and take cover too!
Summoners: Like the Last few mins ago "Find them and Put a Bullet to IT'S head"
Nazi Zombies 2.0- Find Unarmored Spots and Shoot them hard or Melle them down Or shoot Armored Spots to reveal the Bodies (only if u have enouth Bullets Per Sec or Shotgun to Reveal it or Explosive power)
Skelitons 2.0- ^^^
Panzer Zombies- Aim for their Limbs to Restrict their Powers or Movement then Put Hard Earned Bullets into the guy it's better if u take them on 1 by 1 (a Croud is Dangerous and better be Devided)
Chainsaw-Weilding-Zombies (CWZ)- Take Ur Distance and Try Heavy Dmg to him but never take to close when his Head is Revealed Aim to the head Like ZE, Summoners, Other Hard things that are not Fragile to kill this guy and he will "Burn a Hole in ur Pocket" (AKA ur Amunition)

SPOILER ALERT PLZ SCROL DOWN TO CONCLUSION IMEATLY IF U DON'T WANT TO READ THIS PART!!!!!!!!!!!!!!!!!!!!!!!
The Futher: He's One Tougth Son of a Gun Boss and this Mabe Proove Some Diffculty Even for the Most Elite-Zombie-Slaying Squad on the Face of the Planet i will devide this in Solo, 2-Players, 3-Players, 4-Players

Solo: If u Read this and Go Flying in Solo Be Wary this Requires Multi Tasking Powers. 1st Get to the Door ASAP Before the Spell Begins then Bash as Much as u can other Zombies Near by Kick them away for now then Race to the Next door and Bash it down then To the door with Sculls Aim Accuratly and Blow the Sculls away and Pick up the Body, there Instead of running down the Stairs Use the Window and Repeat 1 Time when going to the 3rd door u will see a ZE there Run Back and Deal with him Along with a Large Squad of Panzer Zombies then Get the body if u see a Congoline of undead there Shooth them Down then Resume careying the Skeliton Body When u get Skeliton Bodys down to the ceter and drop it, make a Head shot to Hitler All the way up there u will Expect a Forcefeild to be there for like 2x the Third is his Permanit Death (From what i might Know)
2-Players: Make Sure one is Defending the other Picking up the Bones and Follow what's Above for a bit, When u get to the third door U have to Trust ur Guardian to Break through or make a Lure to drive the zombies away from U to Deliver the Body to Make a Headshot and he will die (from what i know)
3-Players: Like Solo but U may have Choices u have make one Guarding 2 getting the bodies or one for Lure, one Guarding, one Collecting or 2 Lure one Collecting and Ect but u Must be Warned abouth the Third door
4-Players: Like Solo but Theres Many more Choices but up to ur Team may choose who to Play Doctor, Guardian Angel, Scavenger, and Lure Still be wary of the 3rd door
All: Be aware of Positioning of the Further to Slam or such and Keep trying for the Few more Areas and then U will KIll Hitler and Restore the World From Chaos and End the Undead Nation... "If you can."

That's All and i Hope that you do well to save the world from Hitler Regin of Undead power... Remind me to edit somethings so i can Add more info to other players in need of hand