Enemies ------- Hardener to use ------ Damage type to use
-------------------------------------------------------
Blood Raider --- EM/Thermal --------------- EM
Guristas ------- Kinetic/Thermal ------------ Kinetic
Sanshas ------- EM/Thermal --------------- EM
Serpentis ------ Thermal/Kinetic ------------ Kinetic
Angel. --------- All Resis (pri. Expl. ,Kin.) -- Explosive
Mordus -------- Kinetic/Thermal ------------ Kinetic
Rogue Drones -- All Resis (pri. Expl. kin) ---- EM
Mercenary ------ All Resis (pri. EM, Therm) -- Thermal
Minmatar. ------ All Resis ----------------- Thermal (sec. Explosive)
Gallente. ------- Kinetic/Thermal (sec..EM) --- Thermal
Caldari. -------- Kinetic/Thermal ------------ EM
Amarr. --------- EM/Thermal --------------- EM

Faction: least to most difficult
Hideaway*
Burrow
Refuge
Den*
Yard
Rally Point*
Port
Hub*
Haven
Sanctum (Low and null sec)
difficulty: standard > hidden > forsaken > forlorn