I noticed something in the database, and without getting into research about German citizenship laws or the meaning of birthplace/citizenship, I report the following. I'm comparing actual totals/percentages of MLB-signed players to come up with better international scouting percentages, and noticed that the following three players are listed as "German" with US second nationality:
Brendan Donovan (STL)
Phoenix Sanders (AA/TB)
Chris Holba (DSL/STL) (MiLB lists him in the FCL now, I dunno if this was an AI decision but anyway)
I'm changing these guys to be "American" with "German" as 2nd nationality for purposes of my project. Each was born in Germany to US expat parents and grew up in the US. So they seem to be "American" for OOTP database purposes, but I have no idea about their actual passport/citizenship statuses. Everything about German citizenship I know from reading wikipedia for 5 minutes, but as I understand that pre-2000 only people with one German citizen parent acquired citizenship automatically by place of birth (jus soli).
Sorry for the pedantry/minutia, but I thought it was interesting and worth pointing out. I've always assumed these Edwin Jackson type characters to be noncitizens but maybe they've been coded this way to increase chances they participate on German teams in international play. Do with this info what you will! :P
Edit: Isaiah Campbell (AA/SEA) was
born on the island of Terceira in the Azores, not Lisbon. He was born to American parents, so it's a similar situation to the foregoing (adding the fun of the Azores being an autonomous region that's separate in the OOTP database). That article says he was in Turkey by age 5, so he didn't even spend much time in Portugal. Austin Brice is listed as Hongkonger but he was born to expats during the transition period so might have British citizenship but went to HS and college in the US. I couldn't find detailed information on Harold Grant and Justin Connell, both listed as Spaniard because they were born in Barcelona, but they look like Navy kids to me from their bio data.