I just had a glorious mission with my H6K4. It's on the map with all the rice paddies, and I make a beeline for the column of vehicles on the left, and just fly low right over them. I get 5 kills from the light vehicles, then I continue on to the tanks that are behind them and drop the rest of my bombs, getting another 4 kills. Then a swing back toward base, with a few planes on my tail. I aim myself at the gap in the hills, take the gunner seat, and manage to take the wing off the first, and damage the second to the point where he swings away. At that point, the gunners are reloading , and a third shows up and I'm taking a lot of damage, and I lost my far right engine.
My bombs are almost back, and I'm nowhere near water to land, so I swing around back toward the vehicles while I still have enough flaps to do so. I am only able to hit 3 light vehicles this time, and I lose the center left engine, along with every single wing flap. I keep flying forward, hoping to reach the tanks in time to drop the rest of my bombs. I do, and manage to grab one more tank kill. During this my gunners are back shooting, but it's too little too late, as another plane or two decided to take potshots at me. Both wings fly off and I crash.
And then my team decides to do nothing but dogfight for the rest of the game. When I died in my H6K4, the team had a total of 17 ground kills. I had 13 of them, somebody else had two, and two people who had quit by that time each had 1. By the end of the game, I had racked up an additional three or so ground kills on light vehicles (because none of my other planes have bombs), and a couple of plane kills. The rest of team? They didn't get a single additional ground kill. And we lose, horribly.
On the plus side, I'm only about 4k exp from 1000kg bombs for the Emily!