Level 4+ are not newbies. They might not be very good, but they are not newbies.
Hight end achievments WEREN'T SUPPOSED TO BE FARMABLE. Perfect victories happen, but they need a lot of work. I've got a lot of perfect victories without stacking teams against 4+. Unless 2 8+ players on a single ship count. Heck I've had perfect victories even on training days as a pilot (trainers tend to be pilot on training days).
I'd love to get 100 Victories with 100% hull health and no deaths against 13+ captains, but I just won't happen for a long time since the achievments on the way there require me to be a gungeeneer instead of main hull engineer, witch is very rarely - most people who know me, prefer me there, for a good reason, to be on full, or it's just some newbies I don't know, and trust with hull
There is a good reason why it took me about 120 hours to get from level 9 to 10 as engineer. Becouse I don't care about geting Achievemnts right now.
A lot of have very hard achievments (at least when they are announced).