So I want to make a new kind of imperial soldier but dont know which template or actor base to pick. I dont want to base my template around a character with an important script, so they end up doing what the original person in the game does. I just want this actor to be a new generic enemy that spawns with other imperials.

Thanks

They are just templates to save time setting the same options on multiple NPCs (like bandits), so you don't even need to use one, but if there is a common change across all NPCs, changing one template makes that change to all those NPCS.

I suggest, copy a bandit template to a new template, make whatever changes to that you want, and use that as the base for all your new NPCs.