OP, I don't see why you're whining about hostile posters. You came in here with a hostile attitude on a forum for fans of the game. What did you expect?
That aside, I have to say, it sounds like your whole complaint is, 'THIS IS A NEW CHALLENGE THAN WHAT I'M USED TO! WAAH!'. Let's break down what's wrong with your post shall we OP?
Start off with NONE of your equipment....then you're told you're in some collar that will make you explode if you go in certain places...it gets worse too!
You say that like it's a bad thing. It challenged you to a whole new play style that you never bothered to try. You're so complacent with some over powered rifle, you've become unable to adapt to changes in combat situations that are not in your control.
You cant even access the casino right away. You're put in some stupid ass maze of a "villa" and told you have to find 3 other people before you can even get in to the casino.
The casino locked down when the bombs fell 200 years ago, it had been opened by one of Elijah's previous teams, but the casino became sealed once more due to its security measures.
Every spot in the place looks the same, its incredibly boring and tedious.
That's your opinion OP, and I strongly disagree, I found the scenery constantly changing and heart heavy. I found it incredibly immersive and exciting.
All the while you're trying to avoid getting blown up by that stupid collar and getting killed by some lame poisonous cloud. Oh did i mention the stupid ass "ghost" people? Yeah, well, you cant kill them unless you chop them up, so if you're a guns or energy weapons person, have fun! They are just a waste of supplies. I found myself just trying to avoid them rather than waste time and supplies fighting.
We come back to my previous point of 'change of style'. As for your false claim of 'gun users cannot kill Ghost People', this is false. Until I got a Police Pistol, I relied on the Cosmic Knife, which was a valuable too when you were low on ammo. When I did find a police pistol, I was just popping their heads off. As for the collar and poison, stop trying to rush through the DLC, the whole point of Dead Money's style is 'Patience is a key to survival', and that's VERY true in reality. Don't blame the DLC on your playstyle OP.
After you deal with all this crap and find your 3 people, you finally get into the casino.....but wait, the casino is almost completely locked down, except for the lobby and like 2 rooms. Did i forget to mention there is also no power in the place? Yeah, totally shut down, no ones even there, except dumb ass HOLOGRAM GUARDS THAT ARE UNTOUCHABLE BUT SOMEHOW THEY CAN SHOOT [censored] LASERS OUT OF THEIR HEAD AND KILL YOU ALMOST INSTANTLY.
Why would their be people in a sealed casino in the middle of a dead villa covered in a corrosive cloud? Also, you do realise you can shut down the Holograms by either shutting down or shooting the Hologram Emitters, they look like blue bulby things on walls or support beams. I can't fault you on that to much, as you have to be attentive to find some of the emitters.
At this point i just said "Wow, totally not worth my time" so i reloaded and let go of any motivation to complete that DLC. I missed out on the B.A.R. (which is the only thing that makes Dead Money even worth exploring) , but whatever, ive got better guns anyway. If you're thinking of playing this DLC, DONT. If you've got the ultimate edition like me maybe you could check it out, but you'll probably regret it. DO NOT SPEND MONEY ON THIS DLC. Its simply just NOT FUN. The extra 5 levels are cool, because you get 2 or 3 perks from that, but that is the ONLY reason to have it. Thank god the level cap raises without you actually having to endure exploration and completion this piece of [censored] addon.
So, at the end, you decided that because you wanted to run and gun your way through as opposed to think about each move you make, that this DLC wasn't worth your time? I'm terribly sorry you feel this way OP, the DLC is very well written, very creative, and forces the player to think before he moves. I hope you'll reconsider this and try it with a more careful experience. Listen to the dialogue carefully, observe your surroundings, and actually explore to find valuable supplies to help you survive.
However, if you wish to resort to insults in place of a constructive reply, then I bid you good day.