User blog comment:Kingjofferyjr/Samurai vs Praetorian Guard/@comment-5795750-20140726001036/@comment-5078776-20140726004929

I'd consider them different enough in this case. For example in the Legionnaires and Centurions, there are variety of differences for training, tactics, skill, experience, etc. Similarly here, the Praetorian is lacking in battlefield experience that, say, a Centurion brings because of his role as soldier-turned-bodyguard than soldier-turned-commander.

As for arsenals, well, that's up to the author to decide and if people do protest, it can be changed easily.