Inferno tactics.

Let's get the discussion back on track.
Could someone explain to a newbie: how can a Pier with a machine gun solve problems in the first week better than any other demon? It seems to me that the machine gun is only good against tough units, and even then, not on the first day.
Thanks in advance!

In my humble opinion, for at least minimal effectiveness when breaking through not the weakest defenses, you need at least advanced artillery, and it's also very good to have a couple of Ifrits (then often the rest of the minor units are not needed in battle, which is convenient in terms of moving the hero). With basic artillery and a starting army, you can't solve serious problems, or at least not without significant losses. All of the above applies only to breaking through defenses; taking objects like crypts, dwarven mines, etc., is a completely different matter. Something like that.