Things change...
Part of the 13 week (west coast) recruit training cycle actually takes place at Camp Pendleton. The rifle range is at Pendleton and the event called the "Crucible" takes place at Camp Pendleton.
When "boot camp" is then finished, the new Marines receive some time off in the form of "leave" for a couple of weeks. Then it is back to Camp Pendleton for the School of Infantry (SOI). Years ago, it was called Infantry Training Regiment (ITR). All Marines now go to SOI and those who will receive an infantry specialty (MOS in the 0300 field) attend a longer course. East coast Marines go to Camp Geiger (near Camp Lejeune, NC) for SOI.
Yes....things do change.