Which "Mass Produced" Super Soldiers Can beat an Adeptus Custodes?

I put "Mass Produced" is quotes because that's not exactly what you think of when it comes to Custodes but I'll explain what I mean.

For the purposes of this post a "Mass Produced" Super Soldier applies to any made through a replicable process. It can be a difficult and time consuming one like the Custodes but they can't be one of a kind, they have to be something the setting/faction they come from can reproduce to some degree.

The Match is a 1v1 in a gladiatorial arena but both sides have their standard equipment.