Next I decided to go back and shoot down Fi and Clarkson, which took me to the UFEO scenario.
Park, the UFEO commander, is corrupt and working with Uoroboros to pit General and Neucom in order to eliminate both.
There’s an interesting twist in he mission where you need to bomb nanomachines: Rena’s plane gets infected, and you need to hit it with a freefalling bomb 😬
It’s explained that Dision onboarded Rena into an experimental program convincing her to install neurolink so she could pilot Night Raven. Then he was killed by General either because Neucom split or for another reason, but managed to preserve himself in Electrosphere.
He offers Night Raven to Rena, but she uses it to shoot the zeppelin out of the sky. She crashes, but survives to be picked up by Nemo (the protagonist) and Erich. The strange helicopter you blow in the English version turns out to be Park trying to flee.
This ending is much more positive, and also the entire scenario is easier: Su43 you get from UFEO is far better than the aircraft from Neucom, and there are no annoying boss battles or tunnel runs at all.