There is a fundamental difference between a folk tale, a literary tale, and fantasy – a genre of fiction.
P.S. Slavik, why go through a valley with fire traps, walls of swords, and other nonsense?
Gremlin Breakers don't understand high-tech machinery, and no one will let them get close enough to the battlefield – they'll be shot with gauss rifles or the same monolith.
And the Sky Shield is too weak to protect against an entire explosion, plus it requires a lot of mana. But there are whole crates of rockets.
And of course, I won't ask why Gremlin Breakers, goblins, and daughters ended up in the same army xD
If it's Blood Fury, then the hero is an orc and can't place traps or walls of swords in principle. If not an orc, then the shamans have no Blood Fury, which means – the same ten peasants for a cast.
Right?;)