ENEMY USES THESE DAMAGE TYPES:
Gist - Thermal / Kinetic / Explosive
Guristas - Kinetic / Thermal
Serpentis - Thermal / Kinetic
Blood Raider - Thermal / EM
Sansha's Nation - EM / Thermal
Angel Cartel - ALL
Mordus - Thermal/Kinetic
Sevens forces - Kinetic / Thermal / Explosive
Mercenary - ALL
Thukker - Explo/Thermal

ENEMY WEAK AGAINST THESE DAMAGE TYPES:
Guristas - Kinetic / Thermal
Serpentis - Kinetic / Thermal
Mordus - Kinetic / EM
Blood Raider - EM / Thermal
Sansha - EM /Thermal
Angel - Explosive / Kinetic
Mercenary - Kinetic / Thermal
Rogue Drones - EM / Thermal
Thukker - Thermal
Concord - Kinetic Thermal
Equilibrium of Mandkind - Kinetic
Triglavian Collective - Explosive / Thermal

Serpentis (Gallente)
Sansha's Nation (Amarr)
Blood Raider (Amarr)
Guristas (Caldari)
Angel Cartel (Minmatar)

Kinetic for general damage, Kinetic damage is the most powerful against most targets
EM - for shields
Thermal - for armor
Explosive - for hull destruction

EM - Mjoinir
Thermal - Inferno
Kinetic - Scourge
Explosive - Nova