You said:
" In one game, me an a South Carolina were left against one DD. I was running parallel to our BB and the DD was less than 3K from me, but I could not see him. He did not show up for me, no matter what I did with my vis range. All the while our BB was yelling at me, "SHOOT HIM! WHAT'S WRONG WITH YOU?!?" The guy in the BB could see him,. but I could not. Our BB guy called my every name in the book he could get away with. All I could do is say, "I cannot see him!""
You are declaring as facts that the dd was within 3k of you for an extended period of time and you never saw him. This is entirely different than flashing in and out of view due to lag issues which is what Cobia said and I agreed with him as I have seen it too. Clearly not the same thing.
Let's deconstruct this a bit more. You say the BB could see the DD and thus you know he was 3k or less away from you. The way the spotting mechanics work in WOT and WOW is when one can see, all can see. It's not overly intuitive, but that's the way the system works. Once lit by one ship, the spotted ship is view able by all. Once they are no longer spotable by anyone on your side, they go dark again and are invis to all. You can have a situation where a DD gets caught within view range and pops smoke or gets back out of view range quickly. They would appear then disappear within a few seconds as they no longer meet the "spotted" criteria.
In this case, the dd was most likely operating at the edge of visible range and properly getting out of range once he was spotted. You were not paying attention enough to take advantage of the times he was spotted. The other guy was a loud mouth idiot and you were generally clueless.
Time and again, you are describing things in a way that demonstrate a lack of understanding of how the game mechanics work and blaming other things for your lack of understanding.
For example: "He did not show up for me, no matter what I did with my vis range." While you can train skills to increase vis range, there is nothing you can do in battle to adjust your vis range. The statement is impossible.
For example: "DD's are a mystery to me. It is why I really could not get into the game. Kept getting sunk and never seeing the ship that did it."
Nothing mysterious about the spotting mechanics once you understand them. Not seeing who sunk you is because you A) were not paying attention or B) If sunk by torps, you keep driving in a straight line instead of basic maneuvering once in a while. No one beyond the newb levels drive in a straight line for extended periods of time when under fire. Good players almost never get torped because they don't just drive straight for the several minutes it takes for torps to get to them.
For example: "I have found I cannot take on a BB with HE rounds. I hit a South Carolina one game with 121 rounds and she kept on going. In another game I hit a South Caroline with 68 AP rounds and took her down. Both showed full health when we started."
What is odd about this? Nothing. Lets talk game mechanics again. HE rounds are effective against anything as the cause blast damage and light fires. AP rounds, if they penetrate, can cause considerably more damage when they strike key components such as the bridge, engine room etc. If your AP rounds can pen, most use them. If they can't pen, they cause no damage. It's not odd at all for AP rounds to cause more HP of damage as long as they penetrate. Otherwise, HE them and burn them down. If you are are in a cruiser shooting a BB with HE is the way to go most of the time as AP rarely penetrates. So you saying you hit him 121 times with with HE and caused little to no damage seems rather improbable. Survived, maybe, but not unscathed as you indicated.
For example: Your mysterious SC story." His Carolina was firing rounds faster than they could land on a target, and his turret rotation was instantaneous."
Ship specs are not like AH, they are server side. All metrics such as acceleration, turning speeds, reload times etc are supposedly server side. The client requests and action and the server executes if possible and reports the results back to the client. What you are describing is someone who hacked the server but only for his SC and not anyone elses. That seems rather improbable.
While one can reasonably criticize the game, your claims keep coming across as lacking an understanding of how things work and questionable factually. That is why I'm questioning your statements. Try not to be hyper defensive and listen to what is being said.
Merry Christmas Skuzzy.