Badkarma, let me put this simply. Your house rules have effectively destroyed any capacity close-combat-based armies have of winning a previously fair fight. Not only is it extremely difficult to get into combat without taking massive causalties with overwatch (only Rapid Fire doesn't help. The average squad has Rapid Fire.), but when you get there you can hardly do a thing. Your CC rule makes no sense, since it implies that everyone stands perfectly still during brutal melee assault. The closest thing we have to 40K melee is WW2 trench fighting, so ask a veteran how that works. You will probably feel stupid afterwards. Given that a swirling melee generally involves a lot of movement, I'd say it's safe to assume you can hit something about your height away from you by the time the buzzing of the chainswords stops.
I hope you have something to make this fair to your Close Combat players, or you'll probably have quite some explaining to do when they realise that they simply aren't doing as well as anyone else.
Sinkoran, while that may make intuitive sense in some situations, I hope people are expected to come up with a logical explanation as to why the Knights of Brettonia have a giant scorpion with them, and the like. I'd also expect that there's some limitations for units that can change the way an army operates.
Smiley, that plasma rule is a bit odd. The gun is not exploding, just venting estructive gas. Besides, that makes the gun far more powerful when it doesn't work than when it does. Your points notes are common, but I do hope you do more than rough guess estimation, since it's fairly easy to hide a few hundred points. Besides, if you're such a good general compared to your opponent that it makes no difference, it really wasn't a fair matchup anyway. In any case, taking more points than allowed, even by one, is, by the very definition of the word, cheating. Your opponent and anyone else watching the game is quite allowed to point this out, and you are quite wrong to complain that they do not play an illegal army, even if it is only just.
Also, could you please try to use correct grammar? Most of your mistakes are not genuine mistakes so much as sheer laziness. Even then, it's a poor attempt at saving effort, since the twenty or so extra keypresses it would have taken to make that sentence grammatically correct, at a speed of a quarter of a second each, would have taken far less time than thinking of a witty response to someone pointing this out.
This is an english-speaking board, and those in it are expected to speak english. That is not english.