shoulders square to target, knees bent, back straight and leaning in, rifle stock placed high on your chest somewhere between your nipples, head low, offhand under the foregrip with your thumb across your barrel axis.
Don't ever hold onto a tactical grip as if you were giving it a handjob
The bladed stance has it's place, and thats when your clearing corners or shooting from behind cover.
The warfighter stance helps control full auto fire, offers the most amount of armor protection from enemy fire (by having your front plate exposed instead of your sides), and makes you very accurate in semi auto
It offers your enemy a bigger target, which in airsoft is a big disadvantage, but if your skilled with your rifle enough, like I am, the advantage in accuracy makes you REALLY deadly