About
Hey, Ill get straight to the problem im facing.
Here is the character i want to rig

More pics can be sent if required.
Problem
Im wanna animate this rig to make it look cooler in my game.
However when i try to move the hand ,the Armor /Extra parts dont move.
I have a feeling i would need to rig it to the model.
But i dont really know how do i go about this.
Any help will be greatly appreciated .
Thanks!