This is the correct way to add these new jobs without overwriting the default xcom advent general job. It doesn't hurt to add other mod enemy names like the AHWElder even if the mod is not loaded it will work.

-JobListings=( JobName=Rendezvous, MoveOrderPriority=60, bRequiresEngagement=FALSE, \\
ValidChar[0]=AdvGeneralM1, \\
ValidChar[1]=AdvGeneralM2, \\
ValidChar[2]=AdvGeneralM3, \\
)

-JobListings=( JobName=EvacAtRendezvous, MoveOrderPriority=60, bRequiresEngagement=FALSE, \\
ValidChar[0]=AdvGeneralM1, \\
ValidChar[1]=AdvGeneralM2, \\
ValidChar[2]=AdvGeneralM3, \\
)

+JobListings=( JobName=Rendezvous, MoveOrderPriority=60, bRequiresEngagement=FALSE, \\
ValidChar[0]=AHWViperMagnaM1, \\
ValidChar[1]=AHWViperMagnaM2, \\
ValidChar[2]=AHWViperMagnaM3, \\
ValidChar[3]=AHWViperMagnaM4, \\
ValidChar[4]=AHWViperMagnaM5, \\
ValidChar[5]=AHWViperMagnaM6, \\
ValidChar[6]=AHWViperMagnaM7, \\
ValidChar[7]=AHWViperMagnaM8, \\
ValidChar[8]=AHWViperMagnaM9, \\
ValidChar[9]=AHWArchonMagnaM1, \\
ValidChar[10]=AHWArchonMagnaM2, \\
ValidChar[11]=AHWArchonMagnaM3, \\
ValidChar[12]=AHWArchonMagnaM4, \\
ValidChar[13]=AHWOutsiderMagna, \\
ValidChar[14]=AdvGeneralM1, \\
ValidChar[15]=AdvGeneralM2, \\
ValidChar[16]=AdvGeneralM3, \\
ValidChar[17]=AHWElder \\
)

+JobListings=( JobName=EvacAtRendezvous, MoveOrderPriority=60, bRequiresEngagement=FALSE, \\
ValidChar[0]=AHWViperMagnaM1, \\
ValidChar[1]=AHWViperMagnaM2, \\
ValidChar[2]=AHWViperMagnaM3, \\
ValidChar[3]=AHWViperMagnaM4, \\
ValidChar[4]=AHWViperMagnaM5, \\
ValidChar[5]=AHWViperMagnaM6, \\
ValidChar[6]=AHWViperMagnaM7, \\
ValidChar[7]=AHWViperMagnaM8, \\
ValidChar[8]=AHWViperMagnaM9, \\
ValidChar[9]=AHWArchonMagnaM1, \\
ValidChar[10]=AHWArchonMagnaM2, \\
ValidChar[11]=AHWArchonMagnaM3, \\
ValidChar[12]=AHWArchonMagnaM4, \\
ValidChar[13]=AHWOutsiderMagna, \\
ValidChar[14]=AdvGeneralM1, \\
ValidChar[15]=AdvGeneralM2, \\
ValidChar[16]=AdvGeneralM3, \\
ValidChar[17]=AHWElder \\
)