So,When I came online to this website it shows my old armor from when I was Captain Grade 2. I am now a Lt.Colonel Grade 3. It only seemed to carry over my emblem and service tag.
Can anyone help me update my character?

Give it some time.

They stopped updating our armour i’m still on my armour from sergeant. Lt Colonel Grade 1 now.

At least yours looks different mine still looks like a recruit. They stopped the update of armour a while ago.