In my personal opinion the starter sub-classes (gunslinger, void walker, and striker) are all out matched in PVP by their later sub-classes and definitely by the newest ones.
What's your take?
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gunslinger + nighthawk = great stagger on oryx, decent in PVP especially with aclyophage symbiote void walker with shatter and angry magic lays a blanket of death in PvP, not so useful in PvE except for mob clearing. striker is same as void walker