You can skip the turret part and get credit for it. Our group got on the turrets and then got out of the turrets, run back to the entrance and get on top of the ship and eventually the bugs evade and this allows you to skip the event entirely and get credit for it. This is a good exploit because most pugs actually have trouble doing this FP. I've been doing this every single time the daily is up and if you need more of an explanation let me know and i'll try and get some screenshots and maybe possibly a video!