Remove the Kamikaze property if its a land unit. I guess you want it as an air unit so it crashes and is destroyed after the battle, without the use of triggers. This is actually quite clever.
If you use the right software, it shouldn't be too hard to autofill that condition and trigger for every nation and territory, this would let you not deal with that "air unit will die" pop up. I wouldn't expect the developers to prioritize that new feature, since what you want is already possible.
If you want, you can give certain units an extra move phase without any new features needed. Just add another movement phase, reset the unit state for that move phase, and use triggers to set the movement of any units that can't do the new blitz to 0, set it back to whatever it should be after that move phase (be aware this will really mess up the AI though)
Correctly crazy, disingenuously German