If you are PVPing right now in 3.4 there are two bugs/glitches you need to know about.
Speed Bug:
If your ship is damaged and you repair, you will likely end up in a state where your ship has no mass. You will accelerate incredibly fast.
To fix this glitch, get your ship stored and call it back out. It does not need to get destroyed, just pulled off the landing pad.
Shield/Power Plant/Stealth bug:
If you over clock your power plant, other players will not be able to see you until you are very close. To any ship targeting you, you will also look like you don't have shields.
To fix this glitch, do not over clock your power plant.
Issue council post:
https://robertsspaceindustries.com/community/issue-council/star-citizen-alpha-3/STARC-78696-Overclocking_powerplant_bugs_ships_signature_and_shields
In this video:
View: https://www.youtube.com/watch?v=vHRXJSy1TbA
The guy recommends over clocking your power plant, but neglects to warn about the glitch/bug.
It was mentioned in the comments and the person appears to be in favor of glitching.
View: https://i.imgur.com/llzc5XP.png
View: https://i.imgur.com/YpNnn34.png
And you can see at this point in this video:
View: https://www.youtube.com/watch?v=74za4xsrnqU&feature=youtu.be&t=1278
(EDIT: the embed is eating the link to the timestamp. The little yellow link at the bottom of the embed takes you to the point in the video)
That his arrow is definitely speed bugged, going from slightly backwards speed, to full speed nearly instantly.
Hitting a speed bugged arrow is damn hard, so no wonder the people fighting against him were not landing shots. Can't really comment on their skill.
You can use the exploits if you want, but someone who does any pvp is gonna know.