Just a miner forty-niner staking my claim.

Notes:
Thermal - Hob/Ham
EM
Kinetic
Explocive

* Main Damage type to shoot at the enemy
Mercenary - Thermal
Corpum - EM & Thermal
Gist - Explosive

Enemy ------- Hardener to use ------ Damage type to use
Blood Raider --- EM/Thermal --------------- EM / Thermal
Guristas ------- Kinetic/Thermal ------------ Kinetic
Sanshas ------- EM/Thermal --------------- EM / Thermal
Serpentis ------ Thermal/Kinetic ------------ Kinetic / Theraml
Angel. --------- All Resis (pri. Expl. ,Kin.) --- Explosive
Mordus -------- Kinetic/Thermal ------------ Kinetic / EM
Rogue Drones -- All Resis (pri. Expl. kin) ---

-Easiest to Hardest Site-
Hidden > Forsaken > Forlorn
-Smallest to Largest Site-
Burrow > Hideaway > Refuge > Rally Point > Den > Yard > Port > Hub > Haven > Sanctum