This list is trying to evaluate the value of specialists by calculation in a military model. Not in player's subjective view, then offer a quick hiring preference by data . We can divide each specialist ability into such parts: 1.Production 2.Intelligence 3.Shield 4.Battle 5.Navigation 6.Special . Most of these parts can be evaluated by source and drains of drillers( cause the most important thing in game is to produce more drillers and move them into more outposts as we can). some particular specialists are not involved in this list, maybe add it later.
value here is evaluate by drillers in a 8 player balance game model.