1. They look horrible
2. You stand there, put your hand through their back, then pull it out to give them an assassination. This leaves you vulnerable to being killed in the long time it takes to kill them with an assassination.
1. That's a matter of opinion. I think they look good in the context of the game.
2. Assassinations aren't supposed to be useful, they're supposed to be skillful. Using it is inefficient, but it gives you more cR. It's more of a "Tea-bag" than a skill.
Old:

New:

Oh I wonder what about the models is bad...
They look horrible...
Those are two completely different weapons. While one is a replacement for the other one, you use them in completely different ways.
Also, the new one is supposed to be "Old tech" because Halo Reach takes place before Halo 2/3
I could aim almost anywhere on them, shoot, and it be a headshot.
The Assault Rifle, Battle Rifle, and Magnum models look loving terrible.
It takes way too long, leaving you very vunerable.
Between low and high powered active camo?
forget off. I just showed 4 arguments.
I can't argue the first one, because that is your own personal experience. But in my experience, while headshots come easier than in Halo 3, they are still somewhat difficult to get.
That's a difference of opinion. Also, like I said earlier, the models are supposed to be "old tech", meaning that they are the test models for the ones seen in the Halo trilogy. I think they look perfect for the setting they are in.
Assassinations are perfect. The reason that they take so long and leave you vulnerable is because, like I said, it isn't for efficiency. It is, frankly, an upgraded "Tea-bag". If you end up getting killed a bunch because you are using it the wrong way, you shouldn't be using it.
I don't really understand what you are saying. The people using cloaking are easy to find because of the radar jammer and the somewhat visible cloak. But, if they tweek it too much to make it more powerful, it will end up overpowered and abusive.
And technically, you gave me one argument, and it was a weak one at that.