How would I know?
A simple matter of deduction my dear Watson err BaldEagle. From this tour todate U2007 has 10 kills in a A6m on Musashi La7. Low ENY plane (A6m) against high ENY (lgay) equals big perkies....correct? The list goes on but I'll not bother listing every PERK FARM plane or Gv.
So with evidence to prove a case for perk farming what else could a double account be used for .....spying perhaps? A terrible allegation that's been leveled at the jokers more than once. What evidence in the stats could possible prove or insinuate such a thing. Sit down mate....this might be hard to follow. We see in the stat's other Jokers jokers have gotten the odd kill on Musashi. This could imply one of two things.
1) Jokers are aware of the shade and having a nibble on it. I dismiss this possibility otherwise there would loads of jokers killing Musashi for score or perkies.
2) u2007 flying as Musashi is infiltrating mission with the sole purpose of getting them busted or spying in them for such things as goon location. Inadvertently getting whacked by Jokers who are upping from fields in DEFENCE. The jokers are upping in defence because ???? surly you can work that out.