It's The Pilot by Truth (PG-13)

[http://users.livejournal.com/ari_/]

Fandom: GUNDAM WING
Pairing: hints of Duo/Wufei, but it's not a relationship story
Author on LJ: n/a
Author Website: Truth @ GWAddiction, her Weiss Kreuz stories are at The Noodle Bowl
Why this must be read:

Because Truth writes the pilots as mature and intelligent, which is sadly not that common in GW.

It's an AU, but a mild one (they're still Gundam Pilots, not elves and fairies), which features all the pilots, but focusses on Duo and Wufei: What if the mad scientists had decided that Duo has become a liability and want to replace him? And what if the other pilots do not want this to happen?

Each part is written in different pov, and she's a good enough writer that you can figure out pretty easily who is talking. There *is* an annoying 'perspective switch' announcement, but only once in the prologue.

It's the Pilot

There's a link to the sequel, but it is *sniff* unfinished, and hasn't been updated in 2 years.