(adsbygoogle = window.adsbygoogle || []).push({}); Ok, first of all there are secret challenges that can not be obtained by the barracks. One very popular one is STD. But there are many rumors of others that can be obtained.

1. Never Forget. Getting damaged by somebody, not killed than stabbing them in the back while hurt.
[ame="https://www.youtube.com/watch?v=CkI5eCZTqOU"]YouTube- Modern Warfare 2 - 'Never Forget' Challenge - HD[/ame]

2. Renaissance Man. Kill 3 different people with 3 different weapons in one life.
go to minute marker 2:24
[ame="https://www.youtube.com/watch?v=VJCk4HxKQCc"]YouTube- Modern Warfare 2: Skidrow - Team Deathmatch[/ame]

3. Infected. Get knifed by someone wearing the 'Infected' title. 3rd most common hidden challenge.

4. Bigger Bang. Take Revenge on someone who has just killed you by killing them by blowing them up with their own Claymore.

5. Radiation Sickness. Get Nuked.
Most common hidden challenge.

6. Living Dead. Survive a Final Stand Bleedout and get back up.

7. High Knife. Throw a knife as high as possible and get a kill.

8. 6fears7. use 7, 8, 9 killstreak rewards

9. Click Click Boom. Killing someone with C4 while you're in Last Stand

10. Sidekick. 3 kill in 1 life with a secondary.

11. STD. Knifing someone with the STD title on their callsign.
Videos above they are not mine.

12. The Edge I, II, III: Get the last kill in a match 1,15, and 30 times.

13. Loner: You have to get a 10 killstreak with no Killstreaks equipped.

If you know any more please either PM me or comment it.

<====== Rep it. Its good for you.

did u get any title or emblem for that challenge

All the challenges give you a title and xp, or just xp. depends on which challenge. Sorry but i don't remember the ones you just get xp for or title.

maybe just maybe u get the 10th pretige spinning title by completing all these secret challenges

Is this the full list of secret challenges, as I swear I saw a bigger list somewhere. Rep+ because I was looking for these.

Bang for your buck is getting payback with a Claymore, it's on the Challenge List

nice nvm about my last comment

"maybe just maybe u get the 10th pretige spinning title by completing all these secret challenges"
I was thinking that too.

"Is this the full list of secret challenges, as I swear I saw a bigger list somewhere. Rep+ because I was looking for these."
I think so but if not sorry. These were all the ones I knew of.

Thanks for thanking the thread and reppin me.

you get STD challenge by stabbing someone with the STD title on their callsign

WOW haha i forgot to put that one in there. I meant too but i didn't for some reason.