Is there a way to disable self damage with commands?

[matthewtas]

I am making a cfg to replicate a Quake 3 mode I have been playing. I need to disable self damage so you can rocket jump freely. I have looked online and I cannot find a command for it.

Edit: Its dmflags 28 from https://www.esreality.com/post/2849286/dmflagscommand/
I will leave this as this was not clear to figure out.

[Yakumo]

dmflags, voteflags and starting weapons are also in here, and that old esr post missed the footsteps flag : https://steamcommunity.com/sharedfiles/filedetails/?id=542966946