Enemies ------- Hardener to use --------------- Damage type to use

Amarr --------- EM/Thermal ------------------ Thermal
Angel --------- Omni (pri. Exp/Kin) ------------ Explosive
Blood Raider --- EM/Thermal ------------------- EM
Caldari -------- Kinetic/Thermal ---------------- Kinetic
EoM ----------- Kinetic/Thermal --------------- Kinetic
Gallente ------- Kinetic/Thermal (sec EM) ------- Thermal
Guristas ------- Kinetic/Thermal ---------------- Kinetic
Mercenary ----- Onmi (pri. EM/Therm) ---------- Thermal
Minmatar ------ Omni ------------------------ Thermal (sec. Exp)
Mordus -------- Kinetic/Thermal ---------------- Kinetic
Rogue Drones -- Omni (pri. Exp/Kin) ------------ EM
Sanshas ------- EM/Thermal ------------------- EM
Serpentis ------ Thermal/Kinetic ---------------- Kinetic
The Seven ----- Omni ------------------------- Thermal

Ammo damage types:

Acolyte - EM
Hobgoblin - Thermal
Hornet - Kinetic
Warrior - Explosive