Originally posted by archamrm
It does work with Blast Shield, You need two classes, i did mine like this:
First Class:
Equipment= Claymore or C4
One Man Army Perk
Second Class:
Equipment= Blast Shield
One Man Army Perk
First find a good spot to hide, throw your C4 or set down your Claymore (facing toward you). Then switch to your Second Class with the Blast Shield. Once switched put down your Blast Shield and shoot C4 or Claymore. Switch back to First Class and keep repeating until you get Challenge. Takes around 2 or 3 games to get all challenges. Enjoy