Gladiators - early and late

[Pegasus]

Hi Can anyone Show me the Difference between Gladiators of the first century and Gladiators of the 3rd Century onwards ? What I mean is , What kind of equipment was done away with or Introduced .

I Do 1st Century Murmillo and secutor , I was just wondering what I would have to change for a much later Fighter . Any help would be great .

Thanks , Pegasus .