Get a shot gun with a attachment on it.
anyone will work, for this video i used a
Striker With a Red Dot, then as your secondary have a assult rifle
with a granade luncher and self revive on,
Then with your assult rifle out you wanna switch to your
Granade Lucher and as you are switching to your Granade Luncher
Press Triangle / Y, When you do this you should get a wierd looking
ShotGun, after that have a friend Down you then Revive you.
Then your shotgun should look like it's a pistol....