While I was doing the Secret of Cabot House quest I spotted the tower near the insane asylum. It was nighttime, so the fact that it was lit up on the inside made it stick out pretty easily. Sneaking up there, it's some place called Lynn Woods. Nothing weird about the area other than the tower - a few handbuilt shacks, and a pack of shitbag raiders walking around the campfire.
No problem. I sneak into the connected shacks, Blitz out the side to obliterate the closest guy, and the other two are within Blitz distance from him and neither one can stand up to a single swing. Total punks.
After looting the shacks what I could, I climbed up the tower (luckily spotting the tripwire to the frag bouquet at the bottom) and found... a circuit breaker. Buttons are meant to be pushed, but before I can even move I hear someone at the bottom go "Ah what the fuck!" - apparently they had friends who just got back and found their buddies' paste.
Whatever. I am a man of patience, so I sneak back down the tower so I can enjoy my button pushing without being interrupted. These guys don't fare any better than the first three, and in fact the first Blitz through the doorway sneak attacks two guys at once and blows them apart horribly (rank 4 Big Leagues is really good by the way).
Back up the tower. I flip the switch I have earned the right to flip... and incredibly loud sirens start blaring. I never even bothered to look up to what this thing was attached to. Immediately I slap the circuit breaker back off; I'm here to do a quest, not draw every raider in the vicinity to come bother me.
Back down the tower, except about halfway down I hear a really horrible noise I heard before... *whud* *whud* *whud* ... now I'm creeping down the tower as slow as I can slapping the VATS button, and sure enough. Not just one Deathclaw heard that fucking thing, but two - and one of them is apparently a Legendary Alpha Deathclaw. That's great.
Nope. No. Nah. I'm creeping out the doorway and around the back of the tower... well, maybe. Mmm. Maybe? I turn around and the regular Deathclaw has moved in the other direction from the Legendary, and is now coming my direction. Alright alright alright. I'm dead still behind a tree stump now, and he plods right over and then abruptly stops and turns around. In Blitz range.
Okay fuck it - Med-X, Psychobuff, Psycho Jet, Blitz sneak attack almost kills him outright and the second attack does the rest. Somehow I'm still only in Caution - enough to get back behind the stump while the Legendary moves over to see what the fuck happened, and I have enough AP to launch a Blitz attack. I still have the buffs up so I spend the critical on top of that... and it isn't enough to kill him, but it is enough to force him to mutate right away.
So now I'm slamming chems trying to constantly stay on this thing's side swinging away with my Super Sledge while I wait for my AP to come back, but he manages to turn and actually pick me up with one hand, so I have to watch in slow motion while he takes a good look at me before he slams me head first into the ground. Instant head cripple, so now everything is in slow motion and I can't see shit. I can make out the entrance to the shack though, so I slammed another Jet and sprinted that way. As I get to the doorway prime a Frag Mine thinking maybe it would cripple his legs as he tried to follow (just kind of hoping the slow time + sprint would give me enough distance to not blow myself up), but what comes out of my hands is not a Frag Mine but a fucking grenade. Right. A Nuka Grenade. From the last run-in I had with one of these things.
Thankfully the shack structure here has an exit that's perpendicular, so I can turn the corner and get more than one wall between me and the explosion. The Deathclaw literally goes flying back into the wall surrounding the tower and is actually laying on the ground. I didn't even know you could knock these things down. It gives me enough time to come around and Blitz back to him and finish him off.
