If you have a server with command line or launch parameter access, please name the provider
#List of server providers with command line access
fast pollen
past charm
GTX gaming has start.bat file already on reforger server which allows the use of startup parameters. Pingperfect didn't have one but they added -loadsavefile for us when asked.
Nitrado said they will look into adding it but didn't give anything specific so propably wishful thinking