Halo 4 makes you rely on anything, that be vehicles, heavy weaponry, stealth, and so on. So one point down, a lot more to go.
Every Halo game except maybe H3 was like this, remember Reach and H2? You didn't have tremendous amounts of maps to play on. And you say you're always on the losing team, and that people never win? What about the winning team? Ever thought of that?grenades take down shields, so a teammate can headshot a shield less person, therefore, assist, as annoying as it may be.
Ok, that's your problem, either 1. You are just generally bad at the game, or they're better than you. Or 2. It's lagging on one of your connections, if not both.
No, wrong. The general population of H4 are not kill stealers, if anything they're aren't even that good at the game, and are learning. The devs also aren't bias when creating weapons, otherwise the game wouldn't sell well, and wouldn't get high scores as it had received.
You DO NOT pay for Spartan OPs. You ONLY pay for XBL Gold subscription and an Internet connection, that's all.
Campaign was good for Halo 4, but since I have never played GoW3, I cannot comment on that point.
War Games is the MOST balanced multiplayer for any Halo, maybe with the exception of Halo: Wars. That was even playing field for everyone, but not many people liked that game :/
You know powerful weapons have been in Halo since the beginning, and no weapon has beaten the Halo CE pistol for power. So, yeah, you should probably know they're in the game, and it's you duty to work around it.
Again, you're over exaggerating, no one can run from one side of the map to another and kill you except if it was on Haven and they had Promethean vision, even then it's almost impossible. And then, AC is VERY easy to see if you know what you're looking for, the invisibility warps the background ...science for a moment, just like a blackhole. So if you know that, it's easy as pi.
Yet again, this is your problem, I was never a 50 in H3. Because I wasn't good, and I admit that. In Halo: Reach I was a KD of 1.53 then I am now suck on 1.38 on competitive which I mainly played. Now in H4 I had a KD of around 1.89-1.96. It has now stayed on 1.76 for a while. So this is proof that things change, and you need to adapt.
My suggestion is use the DMR a lot, it is over powered and will most likely be nerfed yes, but since you're complaining it should get you a lot of kills, if it doesn't. You aren't very skilful since it is one of the most powerful weapons in the game.
In end, I must say most of this is your fault, and you should look to making yourself a better player. No matter how cheesy I made that sound as. H4 isn't a fail of a game, since it has been of one the most successful FPS ever on a console. So, good luck if you do play again, tough luck if you don't. I'll still be having fun I know.