the most basic weapon you have is your nanoformer. Not much is known about the exact PVP system as of now (and I can't break the NDA too) so the only hard facts are:
- weapons won't be customizable (every weapon will be a predefined element)
- no swords for release (but maybe later)
- there will be different kind of weapons
- it's NO fps combat - it's a lock on fire method as in eve online or ESO (I think? ). No simulated bullets and no reflex based stuff - hit chance and dmg are "simple" formulas