There was a German rifle that shot round corners, had a sideways periscope, so you could see what you were shooting.
https://youtu.be/HSsFiS2VoxgIt was a conversion kit so the rifle could also be used in a more conventional straight barrelled manner.
As a slinger my natural instincts are for ambush tactics, shooting round corners, just appeals to my sense of dirty fighting (no such thing, just winning or losing).
Playing fair in war is for dead people
That and the Mauser with the holster that transformed into a shoulder stock would do me
https://en.wikipedia.org/wiki/Mauser_C96?wprov=sfla1Large magazine, high velocity round and long barrel meant that with the holster used as a stock, you basically had an ultra portable semi auto carbine.
The luger is the weapon that made it into films, but the Mauser was the superior weapon.
Though to be fair a sling and some American grenades would be my weapons of choice for most engagements.
I believe the Americans made grenades that mimicked baseball's in size and weight, for easy throwing.
Could be wrong. It's what they yanks always had in comics when I was growing up.
Hmm, that could have been poetic licence as I can't find any actual device.
In whice case I'll have some German stick grenades and one if Davids cestro slings.
Should get some serious distance with that setup.
Also the Mauser was in a comic series when I was a kid.
Victor comic I believe.
We was not woke back then
Plus the war had only been over 30 years or so, and as a nation, we were still doing a metaphorical victory lap.