A "Paladin" is a type of knight, warrior, or a crusader. They are generally associated with using a type of battle hammer as a weapon, and carry a shield.
The logo should be simple, so that it is easy to recognize small or large, on a banner or embroidered on a shirt. It should only be a couple colors MAX, if not only one (or one, plus negative space). It should be edgy and bold, and could also encompass weapon imagery from the modern warfighter (e.g. M4 rifle), or/and ancient weaponry (e.g. swords, shields, axes, hammers).
The font used in our previous logo is called "Ancient God", and any text should also use that.
One of the uploaded pictures is of a paladin, with hammer and shield, looking off into the distance - there is something about his pose and demeanor that I've always liked. Some kind of simplified "brush stroke outline", that captured his essence might be a very successful logo.
Ultimately, what I don't like about the previous logo is that the bullet, by itself, isn't uniquely identifiable. The inclusion of the bullet was very intentional, to clarify that we are a firearms [training] company. Some people confuse the word "lead" - we mean the metal lead, not as in marketing leads. A bullet, or rifle, may need to be part of the new logo, for a similar reason.
A military patch style would also have a lot of recognizability to our customers.