(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.

i got all of these not really secret

awesome this might have a connection with all rounder

Ninja Defuse - Start defusing the bomb 5 seconds or early within planting. Like let's say I plant a bomb, I run away and camp, do I look back to see if someone was laying next to me to defuse it when I ran? (I do now but that's not the point) If they start the defusing within 5 seconds of the bomb being planted, they get a ninja defuse.

Secret challenge, I think it ups you 3500 XP.

Thanks dude i forgot about that one.

REPOST

You must login or register to view this content.

NOPE mines better

High on Knife is fake.
That video was a BS.

what about the all rounder challenge

I don't remember that one