Hello,
I'm currently far from home due to the quarantine, but I'll patch the convoy cleared issue ASAP.
Regarding hitting bombs, I guess I didnt make it clear enough, but the enemies can detect you based on audio, that's why you are advised to off the engine and dive in.
Diving also helps bomb aiming since when you're pointed downwards, the bombs will fall roughly at the center of your screen, it's how many bombers actually aimed.
So even if you decide to keep the engine on and fly high, a momentary dive will help aim.
Thanks a lot for your feedback, I reckon you'll enjoy the air defense section a lot too. By the way the voice actor was very happy to hear you enjoyed her performance!
Regards,
OKSoft