Ill be honest and say I don't remember the Railjack element system, but definitely swap these to meet your needs, ill look into this at some point and possibly add some other builds, I do have a PT build but I think there are better ones out there than mine. Mostly just uploading this showing the builds I used for a video ill be posting on reddit, I never bother to use my arch gun for fighters in RJ so I haven't really looked into it. TBH I prefer to take [Fluctus] in most cases other than PT anyway.