Damage type to protect against:

Guristas - Kinetic & Thermal
Serpentis - Kinetic & Thermal
Mordus - Kinetic & Thermal
Blood - EM & Thermal
Sansha - EM & Thermal
Angel - Kinetic, Explosive
Mercenary - Kinetic, EM, Thermal & Explosive

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Main Damage type to shoot at the enemy:

Guristas - Kinetic
Serpentis - Thermal
Mordus - Thermal & Kinetic
Blood - Thermal
Sansha - Thermal & EM (mainly em)
Angel - Explosive
Mercenary - Thermal

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Jammers:

Phase (Ladar) -> Minmatar
White Noise (Radar) -> Amarr
Spatial (Gravimetric) -> Caldari
Ion (Magnetometric) -> Gallente