I agree with RavenousRat completely, this isn't a closed book where if you want to roleplay you have to follow the story to the letter completely, times have changed and if you actually take the time and effort to participate in the roleplay you may find out why these Mordinos have acquired this high tech weaponary. Players should be able to create their own story (revisit a story and go through it) or continue a previous story in this game and not just say "awww Salvatores are meant to have energy weapons gtfo crap roleplay", At least these players are doing something. It might be a bit difficult to roleplay with them if they shoot you on sight or you shoot them on sight for what ever reason but if you manage to join in the roleplay then you will be able to understand what is going on but if you choose not to then its your problem, go and make your own roleplay if you think you can do better. - This is just some of my thoughts on RP.
It's not expected of players to be in character all the time and a player shouldn't just be restricted to Virgin street because he had Mordino in his name and he occasionaly rped there.
If you wan't to just fight, kill players and not roleplay then thats fine, I love to do that as well its one of the great aspects of the game, I get killed too when I am defenseless and I don't mind one bit but expect me to come back and punish you. If you can't handle many players on your own then bring some of your own friends to even the score, otherwise come back at another time.
I would also like to add that roleplay can be purely textual and weapons, clothing, location and player name are not required and are completely optional but when they are factored in it adds greatly to the roleplay experience and these Mordinos have chosen to use energy weapons and tied in a story with them but you will never understand what it is unless you participate and ask questions to them directly.
If you want to have a battle with them or anyone else then thats totally fine but dont come back crying and whinging after you opened fire on them and they fought back or brought backup and you got what was coming to you. Get some friends in game with you and settle your beef ingame.
Its really saddening when people who haven't made a single attempt or effort to role play try to hate on someone elses roleplay and then tell them how to do it.
Ofcourse you might get killed straight away for no reason but every one knows this and if they don't stop then fight back or leave, its a feature and risk of the game.
But this is all just my opinion ^^ Wastelanders have a choice to do what they want