MW2 question about using the Javelin?

Has anyone had success using the javelin against people…and does the Danger Close perk improve the success with getting a kill.

After my last pretige I started trying to use it. I’ve had minmal success. I usually try to use it on large maps where I don’t want to get close range on anyone. I’ll fire at an area where I think people may be camping or running through. For example on Estate, I’ll aim for the front door to the mansion and sometimes I’ll get a double or triple kill, and sometimes I’ll get nothing.

Has anyone else had any success with the javelin? If so, what loadout do you use and what are your tactics?

My class is as follows:

Scar-H, Holographic
Javelin
Claymore
Stun Grenade

Scavenger Pro
Danger Close or Stopping Power Pro
Steady Aim Pro

Final Stand