AI stops chasing when in view of camera


I’m hoping someone can help me figure out how I can make my AI either
(A) stop chasing me when in view of the my First person camera, or
(B) Stop the AI from chasing me with a button press, i.e holding a button down the AI pauses, the resumes when button is realised.
(C) My character has a flashlight, I would like the light to prevent the enemy AI from moving.

Any advise would be extremely appreciated this has been driving me nuts.

Thanks is advance

My AI is extremely basic, please see attached blueprint