What should I do?....
Damage type to protect against: Main Damage type to shoot at the enemy:

Angel - All
Amarr Navy - EM & Thermal
Blood - EM & Thermal
Caldary navy - Kinetic & Thermal
Gallente - Kinetic & Thermal
Guristas - Kinetic & Thermal
Khanid - EM & Thermal
Mercenary - EM & Thermal & Kin
Mordus - Kinetic & Thermal
Sansha - EM & Thermal
Serpentis - Kinetic & Thermal

Main Damage type to shoot at the enemy:

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

Signals: Unknown = Complex or Anomaly
Ladar = Gas Cloud
Radar = Hacking Site
Magnetic = Archiology Site
Gravimetric = Hidden Belt