First of all, please excuse my written english. English is not my first language.
Second, I hope this is right place for me to post my ideas here. However if that idea is being used by someone else then please exclude that and let me know! Thanks for your time and give review if you like! Keep that in mind, everything can be possible.
Third, forgot to add one more thing. I have no experience at all with codding. This ideas are purpose to give coders and mappers think of something better. (Not intend to say like they are lack of creative. I want to provide more for creative. Get what I mean?)
PERKS:
Two are better than one: Allows you to dual wield any weapons expect for wonder weapons. $3000
Hoarder: Double the magazine. Example: without perk, 30/120. With perk, 30/240. Also apply for upgraded weapons. $4000
Diamond knife: Double the melee damage. $2000
Shell: Can take one more hit by enemies and reduce the explosion damage by half. (So that don't defeat the purpose of PhD and Juggernut.) Also can be stack able with juggernut and PhD. $3500
More Slots!: Adds three more perk slots! (More Slots perk will not take any slot but are view-able on screen to let you know that you do have three more slots.) $5000
Upgrade Pro: This perk will double the all perks effect (It will work if you drink Upgrade Pro first. However, are not apply to Shell, More Slots, Two are better than one, and Juggernut. To prevent from making game more easier.) $8000
Jesus Take A Wheel!: Once you go down, the AI Character will spawn and clear out the area near you and revives you and give you one random perk. What Would Jesus Do? $2000
BURN BABY BURN!: Double the fire damage done to enemies. $3000
Wonder Weapons:
Blue Wraith: 2/60. Double barrel with blue flames that blew the zombies into dust. The dust will become into blue wisp and move to near target and burns the target. (Will not instant kill the zombies if touched by blue flames, instead it will burns; damages over time.)
UPGRADE: Hell Fury: 4/120. Fires two bullets. Fire balls creates blast (explosion) and burn the zombies within zone of blast.
That is all in my mind at this moment. Meanwhile, please comment what you think! Also you can throw in your ideas in here. I am cool with that.
When I finally think of something, I will update this post.