Here is how you do it
msdeploy.exe -verb:sync -source:webser
ver60 -replace:objectname=metaProperty,scopeAttributeName=name,scopeAttributeVal
ue=AnonymousUserName,match=IUSR_IIS-115,replace=IUSR_IIS124 -replace:objectname=metaProperty,scopeAttributeName=name,scopeAttributeValue=AnonymousUserPas
s,match=bbb,replace=aaa -dest:webserver60,computername=<dest_machine_name>