Yes, I believe it's balanced. Mainly because The only time you can take out someone who's outside, which is 90% of where I fight, is if you catch them off guard, or come behind them.
Also, if the enemy is stupid, it's absoloutly decimating. I took out 5 Rexo's in a stairwell, simply because they wouldnt turn the corner to kill me, in my standard armor.
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