https://forums.station.sony.com/ps2/index.php?threads/to-everyone-crashing-after-gu11.136282/ Lot of people are saying this worked for them, so I figured I'd post it for those of you having issues
If you guys are still crashing, try disabling PhysX, and if you're on nvidia cards, roll the driver back to 314.22, because 320.18 is known to cause crashes.
Also try deleting planetside2.exe, vivoxoal.dll, and vivoxsdk.dll and let the launcher re-download them. Always fixes my crashing issues after updates.