this is the new Perk pro glitch which does not need a lag switch.
1. go to lan and highlight create class.
2. join a player in a online match ( NOT A LOBBY OR PARTY ), then rapidly press x
3. it should then say error or full lobby and it should take you to the lan menu.
4. go to the perk you want pro highlight it and press square to make it pro.
5. then click on it and highlight 'buy and equip'
6. press the PS button and join a invite from a friend who is in a PARTY, then rapidly press x
7. enjoy you should have the pro perk.