Decimator Firespray - option A or B?

By Odatria, in X-Wing Squad Lists

So this is my current list I'm just not sure which option will work best, defensive or aggressive. I'm thinking the defensive option might give me the edge I need to survive long enough to win more often but I thought I'd ask the question.

Captain Oicunn Decimator 42

Dauntless 2

Anti Pursuit Lasers 2

Mara Jade 3

Kath Scarlet 38

Mangler Cannon 4

Wingman 2

Tactician 2

(Kath will be flying behind Oicunn hence where wingman and tactician show their usefulness)

The point of the list is to stress heavily and deny my opponents their action step and limit their movement.

Option A go aggressive put these on the decimator,

Intimidation 2

Rebel Captive 3

Option B go defensive and put these on the decimator,

Determination 1

Ysanne Isard 4

The first helps me stress and lowers agility of the ship I'm touching for Kath to mangler, but I'm thinking Oicunn might go down fast without Ysanne and if I take her instead, Determination add a little more survivability with that last point also.