*Forum told me I'm not allowed to post links, so.. Someone might wanna fix my post up.
This is a hack I made a while back that was just chilling in my projects folder. I used it to get that Master Killer calling card a while back. I thought I'd update it and post it here for you fine gentlemen to use. You can use it to give yourself any calling card you want without actually unlocking it, so it doesn't leave any imprint on your profile. I did this cause I was lazy and paranoid. You can use this to give yourself a calling card from DLC you don't own as well.
Basically to use this, extract the contents of the .rar file to a random folder, and open Config.ini. You'll see a "CallingCard=145" under [Settings]. Change the 145 to the ID of the card you want. I don't have a list of card ID's, so you'll have to play it out by playing around with it a lot. All I know is that 1 is the default ID, and 145 is Master Killer. If anyone has a list, feel free to help out.
After you've changed the Config.ini, save it, run BO2, click Online then run the hack. Doesn't really matter where you are, just so long as you're not offline it'll work. I can't ensure this won't get anyone banned, however I changed my card long, long ago and I still haven't been banned. This also uses temporary code injection with a few safe-guards, so it won't be surprising if any AV's catch it as a virus (see scans below) considering code injection is a similar tactic used by malware and the sort.
I'm sort of testing the waters here, so cut me some slack lol. Enjoy.
Virus Scan:
http://virusscan.jotti.org/eng/scanr...67b3085e5a70d1
http://virustotal.com/en/file/dd3286...ab16/analysis/
Pic: