UpliftedBy Darkdanny
summary: Desperate for an end to the exile, now in it's 47th year, the Quarian Admiralty Board decides on one last audacious plan to destroy the Geth. However, January 1942 in occupied Russia might not be the best place for First Contact with humanity..
It reads less like a lot of other alternate first contacts in that it is not a timeline. All that occurs is almost solely during the War. Also a bit more of a Romance. There are sequels, but I haven't read them yet.
The author does a good job of capturing the WW2 era and even does a good job of explaining why the Quarians side with the NAZis due to political/similar philosophy on society and government