When I get into Nordhagen Beach all my water purifiers and power generators destroyed I dont remember this to be like that? Well is kinda fun now I need to find out what I must to do to make sure this doesnt happen again lol and the settlers says "we need to do something about this raiders attack" this was like that before?

You need to pay attention to any messages you may get regarding your settlements under attack. You must fast travel to the settlement under attack to defend it. If you do not, then you fail the mission and settlers may die or equipment will be damaged or both.

No amount of defense can prevent auto failure if you do not directly intervene. If your settlement had 1,000 defense point, and settlers armed with miniguns and rocket launchers the settlement will be defeated by a single radroach.

Yeah the babysitting mechanic is something I'm hoping will get addressed via mods. It's easy to miss the settlement under attack warnings, a properly defended settlement shouldn't come under attack and lastly if they do I shouldn't need to run to them to "help defend" a location with turrets literaly lineing the walls. It's silly

Yes is dumb to get to the settlement when an attack is in my settlement... when I came back to the beach again I found a legendary death claw attacking everybody

I find once I have a high enough defense rating (around 10 pts per settler) this stops happening, or at least seems to happen less.

Also give your settlers decent guns. I won't let anyone have anything less powerful than a 10 mil with the best reciever (max damage).

Finally, I stash a couple charged-up suits of pwr armor at each settlement for folks to use, should needs must.

I thought while turrets wouldn't work settlers can fight without you there? I have gone to hangmans ally before to find raiders dead inside after my settlers destroyed them.. Not sure though. Allni know is turrets won't load and traps if you aren't there for them to load.

http://www.nexusmods.com/fallout4/mods/4106/? -> Changes the warning to a message box.

http://www.nexusmods.com/fallout4/mods/4180/? -> Disables them completely.