This.Ultrajoe said:Game Balance.
If somebody can get up close to you and not get shot to death, he needs to be able to kill you quickly to make the move worth doing. Game Balance, it rules all.
Its when the person melee-ing has some kind of advantage that lets them get up to you really really fast (evade/sprint in Reach, commando in MW2) that bends the balance a bit.
A calm couple shots can kill any commando/lightweight/marathon guy in MW2.
If your timing is right, you can either parry the sword swing, or go into armor lock for a split second, deplete their shields, and melee them down (personal favorite of mine ^_^)
You can also just avoid tight quarters.
Melee is not overpowered, it is balanced just fine when compared to ranged.