I think this build can work as a hybrid, with an emphasis on PvP since it's more competitive than PvE.

Skills: 20 points
Aim - full upgrade
Nox - full upgrade
Pierce - health upgrade only
Medic - full upgrade
Razor - duration and movement upgrade only

Skillset:
Pve - Aim, Nox, Pierce, Razor
PvP - Aim, Nox, Pierce, Medic (majority of the time)
- Aim, Razor, Pierce, Medic (if you really hate stun lol)

Passives: 25 points
Dex, damage, crit, strength, and intel all 5/5

Masteries: 10 points
Medic 10/10 (this mastery affect your overall gameplay in PvP more than any other masteries)

Well, that's my opinion. Have fun finding the build that works best for you. Cheers!