So two Deathclaw attacks within 10min this morning while taking the kids for a smim if you know what I mean. No building or upgrading at all; just accepted a couple dwellers back from the wastes. I did not even have time to collect my resources and level up all my dwellers being trained. Unreal. Fortunately one of the return dwellers had a FAT MAN but the DC's just absorbed the hit and kept on truckin. Unbelievable.

I think this update was a cheap attempt to boost lunchbox purchases. What the greedy bastards did not realize is that people will simply quit and slam them across all social media which will gimp their sales and kill the game. Good job! Fix this now or I'll be one of them.

EDIT: All of my dwellers are at least LV30, many LV50 with at least 10dmg weapons and 10S/10E/10L. I guess luck actually attracts DC's instead of limiting their numbers and frequency.

EDIT-2: After 1hr of play split into two 1/2hr sessions 1 had: 3 deathclaw attacks, 1 raider attack, 1 molerat infest and 2 fires despite the above stats and no rushing, building or upgrading. After the attacks I decided to destroy my 3-cell, teir-3 radio room just in case. Now it looks like I'm going to have to reconfig my entire vault, all of which is fully upgraded nukacola/nukereactors at an cost of over 150,000 caps. Seriously F-U devs. No I mean that.

EDIT-3: So it appears 75% of the Raider attacks are now Deathclaw attacks which literally occur every 10m. I no longer even enjoy booting the game. Thanks Beth....

Yeah, they lost me as a player/lunch box purchaser... as soon as my Dwellers are back from the Wastes I will not log in again. However, I will not delete the App with the hopes they correct this ridiculous OP event(s).

Like the loading screen says, broadcasting (Radio Room) and repeatedly opening your Vault door (Radio Room recruits and returning Dwellers) raises the chance of a Deathclaw attack. I don't have anyone in my Radio Room, and all my Explorers are training their SPECIALs, and i haven't had a single Deathclaw attack at all.

I think Endurance plays a part in boosting HP of the dwellers. Maybe other stat like (S) & (P) too.