no, you cant
First of all, perks are upgraded by completing a series of perk challenges. To get a perk uograded to "pro", you have to complete 4 of the perk challenges. So, to get Overkill Pro you must complete the challenge called Overkill Pro IV, which is completed by getting 120 kills with your second primary weapon.
At level 27-ish without prestiging. But you have to complete challanges to make it Pro. The Assassin Perk is located in the Perk 2 section.
You have to complete all of the weapon, perk, title, and emblem challenges legitimately.
To get the pro perks in Black Ops you first have to purchase the perk (obviously, and if you don't know they are 2000 cod points). Then, you will need to complete 3 challenges which are under the perks challenges section and then once the challenges are done you will have to pay more cod points to upgrade the perk.
You can view the challenges for pro perks by looking at your challenges under the perk category. There will be three challenges waiting for you to complete. After that you can upgrade to the pro version from the create a class menu
go to barraks then go challenges then go perks to get the pyramid symbol complete the perk challenge that says sitrep once you complete the sitrep challenge you should get it
There are three sets of challenges that you need to complete for the option to buy a pro perk, yes you do have to purchase the pro ability after you complete the three challanges
They are available under the Create a class option in multiplayer, you have three categories and about six perks for each. One perk under each category is available from the start and you have to purchase others. Pro version of the perk is available for purchase after you complete a set of challenges listed for each perk, you can see those when you press 1 while in the perk selection list
In order to get that title, you will need to play enough to prestige once because the challenge that you need to complete is under the prestige challenges. Once you unlock the prestige challenges, you must complete Last Stand Veteran IV which is getting 100 kills while in last stand.
The UAV killstreak is earned after three kills without dying and after two kills if using the hardline perk.
Yes, I believe they do.
You earn them then when you finish the challenges go to the perk when your editing your class load out and press square or x to by the pro version and then there you go