[quote=@Jotunn Draugr]What kind of technology are we dealing with?[/quote]

Think High Medieval / Early Renaissance, or more specifically 16th-17th century Europe. Gunpowder is a thing, and armies of this period would be mixing gunpowder with the push-of-pike. Cavalry are still relevant, obviously, and crossbows and longbows have strengths over the guns of this period (like actually being able to hit their targets), so they're still very relevant as well.

Now, combine that with a plague that decimated a lot of people.

Steel, plate armor, muskets/arquebuses, blunderbusses: all are available. But barbarian hordes are out there, too, and they don't generally use such weaponry/armor. So, you can have equipment (depending on where you're from) ranging from crazy dudes in mail and fur to knights in shining armor to a musket-carrying man with a breastplate and a cabasset.