Occasionally, level 4 Security agents will offer an optional Anomic mission, also known as a 'Burner' mission. These differ from regular Security missions in that your objective is only to kill a very small number of extremely strong pirate NPCs. Your ship class will also be limited for the mission, making success much more about piloting skill and fitting knowledge than sheer firepower. Burner missions usually reward much higher amounts of ISK and LP for your trouble alongside the chance to find much higher value loot in the wrecks of the elite ships you battle with.

https://wiki.eveuniversity.org/Anomic_missions