I asked this question a few years back, but decided to do a little redux for TFBTV:
Submachine guns are pistol caliber fully automatic firearms that were very important in 20th Century military and police use, but seem to have faded in popularity by a tremendous amount.
In this video we talk a little about the historical use of the SMG, and try to see what applications today they might be useful for.
Thanks to our sponsor Ventura Munitions. Without them TFBTV Would not be possible.