when i tried it didn't work
Well, if you mean a care package kill streak like thing, you cannot. If you mean the weird box with question marks on it and gives you weapons, it is called the mystery box and it randomly spawns in specific areas around the Zombies map.
In Call of Duty, the Mystery Box is a wooden box with two flashing golden question marks, and blue beams. It is a random weapon generator that may contain an extremely powerful weapon, or a really weak weapon.
Green with black question marks
First you have to get 950 points exactly, then you go to the random mystery box and press x (xbox 360) or square (ps3) then you get it. Another way,go to the random mystery box and wait until the ?? marks go solid gold and press x (xbox 360) or square (ps3).
Question marks should be placed before exclamation marks when a sentence contains both. For example: "Did you see that amazing performance?!"
No the Ray Gun is Random and you can not do anything to increase your odds in spite of the myths on the subject. I heard that the question marks on the mystery box changes from dark to light coloring and if you buy it when the question marks are the darkest you get the ray gun but I'm not sure because i haven't tried it yet.
The combination of a question mark with quotation marks is used to indicate a question within a quote. This punctuation is referred to as a question within a question or a quoted question.
Question marks are the punctuation used when you ask a question. Here is an example: Can we go to the park today? This is the question mark: ?
One way to get white marks out of black jeans is to dye them black again. You could also use a black marker or pen to color in the white marks. In the future you should wash black jean inside out so these marks are less likely to appear.
Quotation marks follow the question mark.
Question marks (?) and full stops (.) are punctuation marks used in writing to indicate the end of a sentence (full stop) or to signal a direct question (question mark).
The answer is yes. Call of Duty: Black Ops is a very good title and is worth the money. The campaign is followable (not random missions in no order), the multiplayer is phenomenal, and the zombies is terrific. But on the downside, every once in a while in zombies, you just wanna scream WWHHAATT?!?!?!?! because you died "unexplainably". Now I put quotation marks around that because you think that it was bogus. But what you don't realize is that the zombie could've hit you twice (and with hordes, two zombies can easily double smack). But personally, I think that Black Ops is a great title, and if you have the money, you should get it!