You did not read all that I posted then.
Nearly all documents after a certain time frame do say doesn't never installed & so on.
I pointed this out that later authors did a complete 180 from their first publications with their very own same titled books in later editions.
Lyric you might address your assumption that a later work, written 70 years after the war ended, is more accurate than the information gathered at the war's end. If the later books contained documents proving that guns were never mounted on any 234B's then you'd have something but the books simply make unsupported statements. I mixed up Price and Brown earlier when I said Price investigated jets for the RAF., Price was RAF and did interview pilots after the war along with Jeff Ethell but it was Brown who had the job of investigating the German jet program for the RAF in 1945 and he actually landed on an active German airbase that flew Arado 234B's in Denmark by mistake, it was supposed to be captured already, and took their surrender. He also flew 7 different Arado 234B's to evaluate it's performance and to ferry them to England. He talked to everybody he could, pilots, ground crew, designers, and manufacturers, involved in the jet program. He's not a random source that can be easily dismissed by unsupported statements from writers who weren't there. Several sources state that some Arado 234B's had guns and a few state that none did. So far we don't have proof of either case.