*Walks into the armory while dragging an improbably oversized sack on a grav pallet. The sack appears to mutter to itself in a disgruntled fashion.*
Hello. I gathered that I should report here first thing for my forum weapon. I respectfully request...
*Pulls a massive roll of paper out of one pocket and unfurls it, running a finger down all 10 feet of items listed. Stops at the final item.*
...An utterly mundane weapon, of good workmanship and utilitarian design.
? *sigh* OK, if I have to--but I have to tell you, it breaks my heart to have to give you something mundane.
So we're gonna get a bit of a history lesson here.
This is a reconstructed Flemish Godendag. They were first used in the Franco-Flemish War in the 1300s, and I think you'll find that it fulfills your requirements.
Now, I'll warn you--you have to get right up into hand-to-hand range with this baby. It's too heavy and unbalanced to throw, but it will work for melee. And this way, you can always give your enemies a "Good Day."