I have a very good explanation for multiplayer loadouts.

Games Other Halo
1

I remember reading a post (I can’t remember, but I remember seeing it on this website) that said “You will be aloud to attach add-ons to the weapons in the middle of combat” This means, that we are not able to to change the weapons to weapons of our choice but actually it would be using a small perk like, a bubble shield or something to attach to your weapon depending on your play style. Instead of customizing guns or something we will be able to start out with a power up.

That said, I have other proof of this theory, In the first look video if you pause at 3:12 you’ll see under the score it says “BR Slayer” This is a sure sign that we will not customize weapons like in CoD. Also, at 1:59 in the video on the top left hand corner you’ll see what looks like a thruster pack and below it looks to be the circular thing which is on the back of the spartan IV’s. (just above the butt.) That circular thing must be a power up because if it wasn’t then why would it be there in the first place?

2

> I remember reading a post (I can’t remember, but I remember seeing it on this website) that said “You will be aloud to attach add-ons to the weapons in the middle of combat” This means, that we are not able to to change the weapons to weapons of our choice but actually it would be using a small perk like, a bubble shield or something to attach to your weapon depending on your play style. Instead of customizing guns or something we will be able to start out with a power up.
>
> That said, I have other proof of this theory, In the first look video if you pause at 3:12 you’ll see under the score it says “BR Slayer” This is a sure sign that we will not customize weapons like in CoD. Also, at 1:59 in the video on the top left hand corner you’ll see what looks like a thruster pack and below it looks to be the circular thing which is on the back of the spartan IV’s. (just above the butt.) That circular thing must be a power up because if it wasn’t then why would it be there in the first place?

This may have been an assumption by someone who JUST saw the CGI trailer.

3

The on the fly weapon customization was said a long time ago by 343i, just dont have the link here.