The web novel is amazing. Translator did a good job. Sad that the translation is slow to release. Manga hasn't progressed enough into the story, it's only at like the first few chapters of the web novel, so it doesn't give a sense of the tension. Web novel gets extremely intense. If I were to compare this story to Gate, this one is much more intense, with a lot of politics and diplomacy involved. It focuses more on naval and air warfare, less on land battle. A big difference is that this story doesn't have MC's, only temporary characters. What you get are parties made up of countries and their government organizations, and their policies and political views on how to interact with other nations. It's more of a big picture story, and you don't get heroes, like Lt. Itami.
I hope the manga gets as good as the WN, but manga panels are limited to how much can be conveyed when compared to solid pages of words.
"Mob of Deer" has a translation of about 1/3 of the WN.