The dark union event has ended. Here's some data:
highscore expert 1, rank 1316
highscore ultimate 1, rank 893
highscore pp 15, rank 6701
highscore pp 342, rank 6673
highscore pp 661, rank 6636
highscore pp 1289, rank 6567
highscore pp 2185, rank 6491
highscore pp 2581, rank 6356
highscore pp 2684, rank 6332
highscore pp 3590, rank 6181
highscore pp 3041813, rank 936
highscore pp 5956673, rank 605