Here is the full list of all 48 Bloody Raid achievements.
Complete a raid in a class A zone
Reach Rank 3
Complete Practice
Hire your first Hunter
Complete Tutorial
Reach any Hunter level 10
Reach level 10 for all Tier 1 Hunters
Reach Rank 4
Complete a raid in a class B zone
Reach Rank 5
Hire all Tier 2 Hunters
Reach Rank 6
Complete a raid in a class C zone
Reach level 10 for all Tier 2 Hunters
Reach Rank 7
Hire all Tier 3 Hunters
Reach Rank 8
Reach level 10 for all Tier 3 Hunters
Hire all Tier 4 Hunters
Reach Rank 9
Reach level 10 for all Tier 4 Hunters
Reach Rank 10
Reach level 10 of No One
Reach level 10 of Gina
Reach level 10 of Vasiliy Krasnov
Reach level 10 of Marissa Bussotti
Reach level 10 of Grace Smith
Reach level 10 of Harry Elton
Reach level 10 of Anthony Morse
Reach level 10 of Alita Pérez
Reach level 10 of Klaus Neumann
Reach level 10 of Igor Golovin
Reach level 10 of Yvonne Gustafson
Reach level 10 of Dominic Brown
Reach level 10 of Arlene Clark
Reach level 10 of Avis Shala
Reach level 10 of Jessica Brett
Reach level 10 of Yuri Mitrofanov
Reach level 10 of Dana Levy
Reach level 10 of Maria Koganovich
Reach level 10 of John Ashby
Reach level 10 of Avril Bernard
Reach level 10 of Wendy Fernandez
Reach level 10 of Jingsong Chan
Reach level 10 of Roland Hunt
Reach level 10 of Janis Miller
Reach level 10 of Patrick Stuart
Reach level 10 of Elizaveta Shuiko