Question: what are the best archwing weapons?
Answer: For Archguns, there's some options. Fluctus and Larkspur have great AoE, making them useful in the wide-open areas Archwing missions are full of. Grattler also has its fans, though I found it kinda underwhelming. For single-target damage (Jordas, Profit-Taker), Imperator Vandal is commonly considered the best.