I think the history/reality aspect has the depth of this neoliberal shill MC. About the level of a Western propagandist. NotGermany über allies! Evil commies! Enemies only have numbers! Kind of stuff. Generic line after generic line.
The fights lack of impact is the writers fault.
The mangaka's put to writing, a power so great its been uncontested, but for the past 20 volumes. Regardless of the challenge, power of skill reigns supreme. This is worsened by lacking or absent explanations.
Its almost like a drawn out parable.
Consequently, there hasn't really been a compelling story for, you know, 20 volumes.
Its not just the MC, its their unit too. Generic manga, MC strong, kill all enemies without consequences.
The story isn't trying as hard, to convince you to like it, or to "play up" events, as other manga. It doesn't set up scenes stylishly, or with great care.
I think there is discord in the fundamental elements of the story. Such a powerful main character, but with "such human" misunderstandings. It seems to lack self awareness.
The characters are like cardboard cut outs. Composed almost solely of RPG character tropes. It'd be nice if its on purpose though.
I think its a good manga, but its not "LOTGH" tier. So, if the average is 7.5, then its a low 8?
To appreciate it properly, read the LN. The manga is missing too much.
There's an overarching message I'm not understanding. I think. Its just been exposition thus far? Idk
Tried to filter my comments on the matter, to be a bit more sympathetic.