When building a turf there is alot of factors to adress, first of you need to look at what you will be doing in the game.
All of theese have diferent Formations, Skillsets and what kind of stats you would want to choose building on.
Allso, when you build stats and set talents you should choose formations that fits your setup.
One thing thats important in all fighting is that your crew should allways consist of 8 Layers of crew. all 4 classes of your highest Tier and all 4 classes of your 2nd highest Tier.
this is very important since they have difrent abillities. So by sending a 4 layer crew of only your highest Tier makes your Crew incomplete, and you will not be able to win fights against hard targets