Agent missions are very difficult, however if you are prepared and use the right fits then they shouldn’t pose a problem.
Agent mission specific issues:
The Name of the enemy mission appears on the acceleration gate.
The Daredevil used for Sansha Succubus and Angel Cartel Dramiel has a generic hull with the same rigs and some minor fitting alterations.
The Daredevil used for Gurista’s Worm uses a different rig set to the ones above.
I have 2 Daredevils, a Wolf (Cruor) and a Hawk (Daredevil) sitting in the hanger. This covers all the Agent missions.