-DMG from NPCs-
Angel - All (explosive-kin)
Amarr Navy - EM/Thermal
Blood - EM/Thermal
Caldary navy - Kinetic/Thermal
Gallente - Kinetic/Thermal
Guristas - Kin/Therm
Khanid - EM/Thermal
Mercenary - EM/Thermal/Kin
Mordus - Kinetic/Thermal
Sansha - EM/Thermal
Serpentis - Kinetic/Thermal
Zazzmatazz - All

-DMG to NPCs-
Guristas = Kinetic
Angel = Explosive
Serpentis = Thermal/Kinetic
Thukker Tribe = Thermal
Ammatar = Thermal
Blood Raider = EM
Sansha\xb4s = EM
Khanid Kingdom = EM
Rogue Drones = EM
Republic Fleet = Thermal
Mercenaries = Thermal/Kinetic
Mordus = Kinetic

Stacking Penalties
Mod 1 = 100% effect
Mod 2 = 87% effect
Mod 3 = 57% effect
Mod 4 = 28% effect
Mod 5 = 11% effect
Mod 6 = 3% effect

Targeting systems
Minmatar - Ladar
Caldari-Gravametric
Ammar - Radar
Gallente - Magnametric