Well, we have a new weapon for the UK champs which when (if?) we get through the first round we may use. If you dont allow interchangeable armour, but do allow interchangeavle weapons, then where is the line drawn. The other weapon protects the whole front of the robot from those nasty discs, but we called it a weapon, not armour

As it doesnt say what is allowed then I guess that you can change armour as I know robots have Anti-THz armour and no one ever complained about these for live events.

What about robots that dont have a chasis? It would be hard to put in writing a rule that would cover this.