Thus the 3 circle graph, fun vs realism vs objective based game
However, to blow your mind, true milsim is not "fair" either.
When was the last time the Canadian military went toe to toe with an opponent of equal skill and equipment?
Having 5 guys with ptw's wreck 20 guys with crappy stock AKs is still realistic. Wherein the crappy stock AK's would represent crap aim.
If you're fighting a battle on equal terms, your tactics are shit.
So then you move further out of the realism circle and into the fun circle, and balance out the teams based on player skill.
fairness is fun, it's certainly not realistic.