It should be apparent to all that Dust is more about style than substance - it is, after all, the product of a gentleman who was apparently trying to do a WWII anime. With that in mind, I offer the following explanation of the 'grenatewerfer' title to those who seem to be wanting the Hans to be an even bigger piece of cheat for 25 points than it is (and it's pretty nasty already: An artillery weapon that doesn't use reloads, and one of the most vicious anti-tank attacks in the game): Look at the rockets the Hans uses. Half of them look like large stick grenades. Soldiers, with their fondness for nicknames, would simply call it at 'grenatewerfer,' especially since the Germans don't have the man-carried launchers - it's an 'ours is bigger' joke.
Now, can we get people to stop whining for the grenade rule to it? That is unseemly, considering the Hans' considerable advantages.