I'm an active youtuber, right now more focused on Zombie Videos but that's cuz I can't find any good games to play right now, waiting for black ops 3 to be released. (Note that I'll still upload 3-4 zombie videos a week even after bo3 comes out, especially since bo3 has zombies!) My youtube name is Aggressive Videos. I play solo, with others and do live commentary.
Don't always play alone or commentate alone. Sometimes with others, currently KnivingCombat777 - fellow youtuber

Does anyone know how to make/add a functioning mystery box map like the ones in black ops 1 & 2?
(And also change it to showcase your map that you've made)

After trying to run the map I encountered this:

"Error
Server script compile error
bad syntax
#include maps\_zombiemode::main[];
(see console for details)"

This is after using developer 1 in console.

How do I fix the Missing Tag 8 error?

What are each and every tag? First I had a problem with Tag 9 missing, now Tag 8 >.< Have no idea what each of them are and how many there are!    

W.I.P = Work In Progress
Lots of Questions are here, I seek answers so we can share this information to everyone so people won't have such a hard time finding, making it or just choosing to give up on it! (Note that I do not know most of these things) It will be updated/changed as we gain this knowledge from others, Try spreading this post around.)
Answers must be as Informative/Detailed as possible, if you cannot do that, just write what you know and i'll handle it. Tutorials on Youtube will be made for all these things as well.

Q: How do you add a Teddy Bear Easter Egg that plays a Song when completed?
A: ?

Q: How do you add a functioning Jukebox?
A: ?

Q: How do we change songs in the Jukebox?
A: ?

Q: How do you make a Custom Perk?
A: ?

Q: How do we change the effects of a perk? make the effects stronger basically. (ex: Stamin-up lets you sprint twice/triple as fast as before or Jug lets you take 300% dmg before going down than the regular 200-250%.)
A: ?

Q: How do you make so Teddy Bears, Perk Bottles, or Other Chosen Thing (easter egg), opens a door instead of playing a song?
A: ?

Q: How do you make a Boss Zombie that spawns every now and then? (every 5/10 rounds)
A: ?

Q: How do you port weapons from another game (ex: black ops 1 or 2) into the map?
A: ?

Q: How do you remove dogs? (without it causing a problem when launching map)
A: ?

Q: How do you make a Custom Drop? (drop= max ammo, nuke etc.)
A: ?

Q: How do you add Custom Textures? (walls, floor, text etc.)
A: ?

More will come, Questions? Reply to this post and i'll add it if it's not here, an answer? Awesome! I'll add it asap to this list.

I see people on youtube when they're making custom zombie maps, use tons of cool models etc. for debris or other. However I don't have any of it. Is it seperate from the WaW Mod Tools?

When I start up the map i've made, it goes back to the lobby and tells me "ERROR - Missing tag [Tag_Aim] on entity [9]"
How do I fix this? 

Looking for people who can play regular and custom zombies or/and the beta on Requiem).

What I request:

that you are 14 or older. (I am 16)
have skype and mic available. (not necessary ofc but would be easier)
don't have a problem with being on youtube. (you can reply/write if you wanna record or be off camera)
can download and install custom zombie maps.

Steam name: AggressiveVideos
World At War name: AGVideos
Youtube: Aggressive Videos

And no, I am not aggressive haha. 

When I successfully install UGX Launcher from the UGX Launcher Installer, I open it (as administrator) but then it closes immidietly and self deletes. However the installer says it is installed (but it is actually not). Is this a known bug or is Norton (My current virus protection program) causing this? Would love to sort this out asap.