Please leave an honest review on my ideas. First I know the game is in the future but DO NOT replace the zombies with robots because that would just be stupid. Next i have a few ideas:
Perks- You should be able to buy a perk again to return it. For example if i bought speed cola i should be able to go up to the machine and for another 3,000 points i could return/ get rid of it. Also add an extreamly pricey perk that alows you to either keep mule kick after getting downed and if you dont get revived/dont have mule kick you get to keep your wepons after coming back the next round (also alows a fith perk to be bought).
Pack-a-Punch- After pach-a-punching a wepon you should be able to put it back in the machine for double or tripple the cost to fill its ammo.
Special Grenades- There should be a special grenade that alows yo to go invisable for 3 seconds so you could walkthrough zombies and past them without them detecting you (One use a round or three uses every max ammo). Also alow players to buy throwing knives or tomahawks to through at the zombies which can be equal damage to a ballistic knife or a bowie knife.
Wonder Wepons- A bubble gun, you shoot it at zombies and they get trapped in a bubble then float up until the bubble pops and makes them fall to their death. An element gun a combination of the thunder gun, a flame thrower, and a water/ice gun all shot in one huge "bullet". Make another wonder wepon like the one in moon where it is like dual wield ray guns that get put together for a greater gun.
Maps- Some map themes a junk yard, roof tops, a neighborhood, or a city. But don't have zomies that are imposable to kill like George but if you do have a gun that is completely use less againset regular zombies but will kill the "super" zombier in one shot however the player would not get rewarded from that kill (no extra perk). Make easter eggs easier or more obvious on what to do also make them require no more than 2 people to complete. Also make two easter eggs one that gives everyone all the perks perminatly and one that gives you difrent wonder wepons instead of a death machine.
Power Ups (Max ammo, Insta Kill ect.)- Add a power up that revives every downed player and give everyone 500 points. Also add a power up that drops a 20 second turret (like in DOA).
Other- Have migrating host on multiplayer zombies. Also improve the leader boards (sometimes score/rounds dont save) also show the downs, kills, points, and revives the player had when getting to their highest round.
What do you think????