1) Yup
2) I've got Hip-Fire and Kneepads
3) Not yet
4) Have not used it yet. Was thinking about re-rolling first. Hip-Fire may be useful, as I tend not to aim as often with fusion rifles. But Kneepads, lol? Got to be some better perks out there
English
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Well, depending on your playstyle (and whither you prefer PvE to PvP) the perks: Rangefinder and Army of One are pretty good perks.