Vigilant boss pve build?

So I am making my first destroyer in 2 days. The main reason is that I am unable to complete any of the boss fights ever. Best is the boss escaping with 4% or so HP. So If anyone can give a setup (screenshot preferred) for the bosses, it would be really awesome. 


Also general tips on destroyers would be highly welcome.


PS: Which modules should I choose during construction and the number of slots? 

Seems like this might be what you are looking for.


For Defiler (and maybe Destroyer, but I’m not really up to date with that mission.)




Thanks a lot. I am guessing the active modules are Holo shield and wormhole generator? Whats the 2nd one?