Orcsen Oukokushi ~Yaban na Orc no Kuni wa, Ikanishite Heiwa na Elf no Kuni wo Yakiharau ni Itatta ka~ - Vol. 1 Ch. 5.2 - When it rains (Part 2)

[Mister_Susan]

So they still hold the medieval age chivalry value, while having almost modern time weaponry and tactical....

If I remember my schooling correctly, that’s generally accepted as one of the reasons WW1 had such a high body count – war culture was still running on ye old honor and chivalry mores when the efficacy of modern weaponry and tactics made those beliefs impractical.
“Proudly distinguish yourself with your bright saber in hand to raise troop morale” was from a time before howitzers and rifled barrels.

Our Orc nation hasn’t yet had a war with their modernized military, so their older values haven’t been slapped with reality yet.